At maximum speed, an airplane travels
Let x be the maximum speed of the plane and y
2100 miles against the wind in 6 hours.
be the speed of the wind. What is the speed of
Flying with the wind, the plane can
the plane with no wind?
travel the same distance in 4 hours.
Enter the correct answer.

Answers

Answer 1
Plane's air speed is 437.5 mph
Wind velocity is 87.5 mph
An actual question hasn't been asked, but an
educated guess would be to determine the
plane's airspeed or the wind velocity. So I'll
calculate those values for you.
When traveling with the wind, the combined
speed is 2100/4 = 525 mph.
When traveling against the wind, the combined
speed is 2100/6 = 350 mph.
So we can create 2 equations with 2 unknowns.
They are:
a- b= 350
a+ b= 525
Let's add the two equations together.
a-b=350
a+ b= 525
2a = 875
a = 437.5
So the plane's speed in still air is 437.5 mph.
Let's calculate the wind velocity.
at b= 525
437.5 + b= 525
b= 87.5
And the wind velocity is 87.5 mph

Related Questions

3+9(5)
8
2 is equal to

Answers

Answer:768

Step-by-step explanation:

Question 38.
Write the first six terms of the arithmetic sequence with the first​ term, a1 = 240, and common difference, d= 24.

The first six terms are a1 = ,a3= , a4= ,a5= , and a6= .

Answers

[tex]a(1) = 240 \\ a(2) = a(1) + d = 240 + 24 = 264 \\ a(3) = a(2) + d = 264 + 24 = 288 \\ a(4) = a(3) + d = 288 + 24 = 312 \\ a(5) = a(4) + d = 312 + 24 = 336 \\ a(6) = a(5) + d = 336 + 24 = 360[/tex]

A cell phone company charges an initial price of $500 for a new phone and then $60 each month after the purchase. if c (t) is a rational function that represents the average monthly cost of owning the cell phone, what is the range of the function? (2 points) r: (0, 500) r: (60, 560) r: ℠r: (−[infinity], [infinity])

Answers

The range of the given function is: (500, ∞).

What is the range of a function?

The collection of potential output values for a function is known as its range.

Now,

Given:

Initial price of the cell phone = $500Monthly charge = $60

Let 't' be the number of months. Then, the function C(t) can be calculated as:

C(t) = 500 + 60t

For range:

The minimum value will be when t = 0, i.e., when no charge has been charged by for each month.

Thus, C(0) = 500 + 60(0)

=> C(0) = 500

The maximum value will be when t = ∞, i.e., for infinite number of months.

=> C(∞) = 500 + 60(∞)

=> C(∞) = 500 + ∞

=> C(∞) = ∞

Thus, the range of the function will be: (500, ∞).

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What is the distance between -6 2/3 and 4 1/3 on a number line, in units?

Select ALL that apply.

Answers

The distance between the points = |-6 2/3 - 4 1/3| = |-20/3 - 13/3| = |-33/3| = |-11| = 11 units.

How to Find the Distance between Two Points on a Number Line?

The distance between two points on a number line is the absolute difference between their coordinates.

Given the following points are on a number line:

-6 2/3 and 4 1/3

The distance between the points = |-6 2/3 - 4 1/3|

The distance between the points = |-20/3 - 13/3|

The distance between the points = |(-20 - 13)/3|

The distance between the points = |-33/3| = |-11|

The distance between the points = 11 units.

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(PLEASE HELP) -5 - (-5/3)

Answers

Answer:

steps

-5-5(-5/3)

=-5-(-25)

=10/3

=3 1/3

Step-by-step explanation:

Pls help I dont get this

Answers

Answer:

Step-by-step explanation:

Rewrite: [tex]15\frac{1}{6}[/tex]% as a decimal. Round to the nearest thousandths.

Answers

Answer:

15.17

Step-by-step explanation:

Multiply whole number by denominatorAdd product to the numeratorDivide the sum by the denominatorRound your number to the neaests thousandth

I don't get this, I would be happy if someone helped me.

Answers

Answer:

Step-by-step explanation:

(5/8 + 6/8)/(-4/6 - 5/6)

(11/8)/(-9/6)

(11/8)*(-6/9)

= -66/72 = -11/12

Answer:

11/12

Step-by-step explanation:

5/8 + 3/4 = 1 3/8

-2/3 - 5/6 = 1 1/2

1 3/8 divided by 1 1/2 = 11/12

Grace has read 2 chapters in each of her 9 books. How many chapters has read in all

Answers

Answer:18

Step-by-step explanation:2*9=18 hope this helps

Answer:

18 chapters have been read in total.

Step-by-step explanation:

What is the slope of the line that passes through the points (1,-6) and (-2,-8) ?

Answers

We can conclude that the slope of the line is (-2, -3).

What do we mean by the slope?The slope of a line indicates its steepness. The slope is calculated mathematically as "rise over run" (change in y divided by change in x).

The formula of slope: y₂ - y/x₂ - x₁

Put the values in the formula as follows:

y₂ - y/x₂ - x₁-8 - (-6)/-2 -1-2/-3

Therefore, the slope of the line is (-2, -3).

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Pls show steps on how u got the answer and thank u

Answers

Answer:

A=3

Step-by-step explanation:

-7a+28=7

subtract 28 from both sides to eliminate it from the first side

-7a=-21

Two negatives equals a positive

7a=21

divide both sides by 7

a=3

7. The top of a tree is 35 feet above ground level. The roots reach down 22 feet below ground
level. What is the difference between the top of the tree and the bottom of the roots?

Answers

Answer:

57?

Step-by-step explanation:

35-(-22)

Write an
inequality that represents the
temperatures (in degrees Fahrenheit)
of the interior of the iceberg.
-20°C to
-15°C

Answers

The inequality representation can be expressed as: -4 < x < 5

Representation of real number into inequality.

An inequality is a mathematical connection that exists between two expressions and may be expressed by one of the following:

"greater than >" "less than < ""less than or not equal to ≤: "greater than or equal to" ≥:

From the given expression, the conversion of °C to F is estimated by using the formula:

(°C × 9/5) + 32

For  -20°C , we have:

= (-20°C × 9/5) + 32

= -4 F

For -15°C, we have:

= (-15°C × 9/5) + 32

= 5 F

Therefore, this can be represented in inequality form as: -4 < x < 5.

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The inverse of f(x)=9x^2

Answers

Given function:

f(x) = 9x²

Let the inverse is y = f⁻¹(x).

Swap x and y in the given function and solve for y:

x = 9y²y² = x/9y = √(x/9)y = √x / 3

The inverse of the given function is:

f⁻¹(x) = √x / 3

Answer:

f-¹(x) = √(x)/3

Step-by-step explanation:

Now we have to,

→ find the inverse of f(x)=9x²

Then the inverse function will be,

→ f(x) = 9x²

→ y = 9x²

→ 9y² = x

→ y² = x/9

→ y = √(x/9)

→ [ y = √(x)/3 ]

Hence, the inverse is √(x)/3.

two vertices of an obtuse triangle are $(6,4)$ and $(0,0)$. the third vertex is located on the negative branch of the $x$-axis. what are the coordinates of the third vertex if the area of the triangle is 30 square units?

Answers

Since the third vertex is located on the negative branch of the x-axis, the coordinates of the third vertex of this triangle is equal to (-15, 0).

The types of triangle.

In Geometry, there are different types of triangle based on the length of their sides and angles, and these are;

Equilateral triangleScalene triangleIsosceles triangleObtuse triangleRight-angled triangle

How to calculate the area of a triangle?

Mathematically, the area of a triangle can be calculated by using this formula:

Area = 1/2 × b × h

Where:

b is the base area.h is the height.

Note: The height of this triangle is the y-axis of (6, 4).

Substituting the given parameters into the formula, we have;

Area = 1/2 × b × h

30 = 1/2 × b × 4

2b = 30

b = 30/2

b = 15 units.

Since the third vertex is located on the negative branch of the x-axis, the coordinates of the third vertex of this triangle is equal to (-15, 0).

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Complete Question:

Two vertices of an obtuse triangle are (6,4) and (0,0). The third vertex is located on the negative branch of the x-axis. What are the coordinates of the third vertex if the area of the triangle is 80 square units?

Find parametric equations that describe the intersection of the cone z=x^2+y^2 and the plane =2z

Answers

Answer:

hhrhrthrtht

Step-by-step explanation:


A regular hexagon is divided into 6 congruent triangles. If the perimeter of the hexagon. is 48 centimeters, what is the height of each triangle?
A 4 \mathrm{~cm}
B 4 \sqrt{3} \mathrm{~cm}
C 6 \sqrt{3} \mathrm{~cm}
D 8 \mathrm{~cm}
E 8 \sqrt{3} \mathrm{~cm}

Answers

Answer:Your answer would be E

Step-by-step explanation:8 times 6 would be 48

The measure of height of each triangle will be 4√3 cm. Then the correct option is B.

What is the perimeter of the regular polygon?

All the sides of the regular polygon are congruent to each other. The perimeter of the regular polygon of n sides will be the product of the number of the side and the side length of the regular polygon.

P = (Side length) x n

A regular hexagon is divided into 6 congruent triangles. If the perimeter of the hexagon is 48 centimeters.

Then the Side length of each triangle will be given as,

48 = (Side length) x 6

Side length = 8 cm

Then the measure of the height of each triangle will be calculated as,

tan 60° = h / (8 / 2)

√3 = h / 4

h = 4√3 cm

The measure of height of each triangle will be 4√3 cm. Then the correct option is B.

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How many lines appear in a square

Answers

Answer: 4?

Step-by-step explanation:

What is the 4th term in the following expression?
-2 - 5x -7 - 9x

Answers

The value of the expression is -65.

How to compute the expression?

It should be noted that the function given is illustrated as:

-2 - 5x -7 - 9x

In this case, you've to put the value of x as 4.

This will be:

= -2 - 5x -7 - 9x

= -2 - 5(4) - 7 - 9(4)

= -2 - 20 - 7 - 36

= -65

Therefore, the value of the expression is -65.

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Ethan works in a department store selling clothing. He makes a guaranteed salary of $500 per week, but is paid a commision on top of his base salary equal to 25% of his total sales for the week. How much would Ethan make in a week in which he made $1250 in sales? How much would Ethan make in a week if he made xx dollars in sales?

Answers

Ethan makes in a week = $812.5

Given :

Total sales for the week = $1250

a guaranteed salary = $500

paid a commission on top of his base salary (Percentage commission) = 25%

Time and work problem:

Work Done = Time Taken × Rate of Work

Rate of Work = 1 / Time Taken

Time Taken = 1 / Rate of Work

If a piece of work is done in x number of days, then the work done in one day = 1/x

Total Wok Done = Number of Days × Efficiency

Efficiency and Time are inversely proportional to each other

X:y is the ratio of the number of men who are required to complete a piece of work, then the ratio of the time taken by them to complete the work will be y:x

Solution :

Amount of commission earned = 25% of $1250

= 25/100 × $1,250

= 0.25 × 1250

= $312.5

Total earnings = Base salary + Amount of commission earned

= $500 + $312.5

= $812.5

Ethan makes in a week = $812.5

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What is 943,158,670.3491 rounded to the 100 millions? PLEASE ANSWER ASAP!

Answers

Answer:

I believe the answer is 943,158,670.349

Step-by-step explanation:

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

I NEED HELP FAST PLEASE‼️‼️

SIMPLIFY TO SIMPLEST FORM‼️

Answers

I think the answer is 9/32

Answer:

1/2

Step-by-step explanation:

-put 3/8 and 3/4 side-by-side.

-keep 3/8

-change the division sign to a multiplucation sign

-flip 3/4 to 4/3

-multiply

What is the value of the expression 3 -4?

Answers

Answer:

-1

Step-by-step explanation:

3 - 4 = -1

When dealing with subtraction, you must be very careful with the order you place your numbers in. Let alone, subtraction is important in real-world situations, so just something to help. :)

______________________________

Wrapping up:

➲ Hope this helps.

➲ Notify me of any concerns, and I will address those concerns.

➲ Have a good day.

Suppose that both of the events you have just analyzed are partly responsible for the decrease in the price of hamburgers. Based on your analysis of the explanations offered by the two groups of students, how would you figure out which of the possible causes was the dominant cause of the decrease in the price of hamburgers?.

Answers

If there is an increase in the equilibrium quantity of hamburgers, the supply shift in the market must have been greater than the demand shift.

Assuming that all demand-shift factors remain constant, the hamburger demand curve illustrates the relationship between hamburger price and quantity required by consumers. The factors influencing how many hamburgers consumers desire to purchase at a particular price are known as demand determinants.

If the price of hamburgers increases, the demand curve will move from the previous price to the new price. However, if any of the demand-shift variables change, such as the cost of hot dogs, the cost of hamburger buns, or the income of hamburger consumers, the demand curve will alter.

Demand is where the demand curve is located. Demanded quantity is the volume that customers want to purchase.

The position of the supply curve is referred to as supply. The quantity of supplies you desire to sell is referred to as the quantity supply.

In this instance, an increase in supply will result in a fall in the equilibrium price and a movement all along the demand curve. The quantity demanded changes, while the demand curve does not.

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The image of the point (2, -3)under a translation is (1, -6)Find the coordinates of the image of the point (9, -5)under the same translation.

Answers

The image of the point (2, -3)under a translation is (1, -6).  the coordinates of the image of the point (9, -5)under the same translation is (9,-8).

With the aid of mirror-related concepts, we will first build a diagram of the image position in order to determine the coordinates of the image location. We will use trigonometry to determine the necessary coordinates after sketching the diagram.

Without needing to change its orientation, a translation relocates an item from its original location on the coordinate grid.

An illustration of a transformation is translation. A transformation is a technique for moving or repositioning a shape.

Image of the point (2,-3)

under the translation (2,-6)

2+a=2

a=2-2

a=0

-3+b=-6

b=-6+3

b=-3

By applying the translation (x+0,y-3) to (9,-5)

(9+0,-5-3)

(9,-8)

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from the top of a 160-ft lighthouse, the angle of depression to a ship in the ocean is 26°. how far is the ship from the base of the lighthouse? (round your answer to the nearest foot.)

Answers

The distance of ship from the base of the lighthouse is 328.54m, as found with the help of angle of depression.

What is Angle Of Depression?The angle of depression is the angle formed by the horizontal line and the horizontal line's observation of the item. When we know the angles and the distance of an object from the ground, it is primarily utilized to find the distance between the two objects.

Given:

Height of lighthouse = 160 feetAngle of depression = 26°

To find: Distance of ship from the base of the lighthouse.

Finding:

Let 'x' be the distance of the ship from the base of the lighthouse and θ be the angle of depression.

Then, tanθ = [tex]\frac{160}{x}[/tex]

=> x = [tex]\frac{160}{tan26}[/tex]

=> x = [tex]\frac{160}{0.487}[/tex]

=> x = 328.54m

Hence, The distance of ship from the base of the lighthouse is 328.54m, as found with the help of angle of depression.

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try these using the above pattern, find the value of the following. (i) 73 – 63 (ii) 123 – 113 (iii) 203 – 193 (iv) 513 – 503

Answers

The value of the given question by using the above pattern is (i)127, (ii)397, (iii)1141, (iv)7651.

What do you mean by pattern?

In the real world, in artificial design, or in abstract concepts, a pattern is a regularity. As a result, a pattern's components repeat in a predictable way. Any of the senses can directly witness patterns, which are types of patterns made of geometric shapes and frequently repeated like wallpaper designs. On the other hand, abstract patterns in science, math, or language might only be visible through analysis. In actuality, direct observation entails recognizing visual patterns, which are common in both nature and art. Natural visual patterns are frequently chaotic, hardly ever precisely repeat, and frequently contain fractals. Spirals, meanders, waves, foams, tilings, fissures, and patterns produced by rotational and reflective symmetries are examples of natural patterns.

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9. Royanne determined that it cost her $.75 a day to make her own lunch
for school. If she ate in the cafeteria, lunch would cost $2.25. In five days,
how much money would Royanne save by bringing her own lunch to
school?
O $5.50
O $7.50
$9.50

Answers

She would save $7.50.
If you calculate how much money it would cost her to make her own lunch times the five days which you will get…
0.75 *5= $3.75
And then calculate how much money it would cost her to eat in the cafeteria times the five days..
$2.25*5=11.25
Now you want to subtract the amount she makes her own lunch and the amount that she would eat in the cafeteria so…
11.25 - 3.75 = $7.50

So in the end she would save $7.50 if she was to bring her own lunch to school.

I hope this helps, have a good day! :D

Select the correct answer. What is this expression in simplified form? 2√2-7√18 OA 18√5 OB. 84√2 OC. 84 OD. 14sqrt6​

Answers

The expression in simplified form is -19√2

How to write this expression in simplified form?

The expression is given as:

2√2 - 7√18


Express 18 as 9 * 2

So, we have:

2√2 - 7√18 = 2√2 - 7√(9 * 2)

Take the square root of 9

2√2 - 7√18 = 2√2 - 7 * 3√2

This gives

2√2 - 7√18 = 2√2 - 21√2

Evaluate the difference

2√2 - 7√18 = -19√2

Hence, the expression in simplified form is -19√2

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a train is travelling at a speed of 90 miles per hour. the driver of the train plans on maintaining this speed for the next 120 miles, plus or minutes 15 miles. find the minimum and maximum numbers of hours the train will travel at that speed.

Answers

The minimum and maximum numbers of hours the train will travel at that speed are 1.17 and 1.5

How to find the minimum and maximum numbers of hours the train will travel at that speed?

The given parameters are

Speed = 90 miles per hour

Current speed = next 120 miles, plus or minutes 15 miles.

Let the time travelled be x

So, we have the following equation

Speed * Time = Distance

This gives

|90x - 120| =15

Remove absolute bracket

90x - 120 = ±15

Add 120 to both sides

90x = 120 ±15

This gives

90x = (120 - 15, 120 + 15)

Evaluate

90x = (105, 135)

Divide by 90

x = (1.17, 1.5)

Hence, the minimum and maximum numbers of hours the train will travel at that speed are 1.17 and 1.5

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