Montana is known for having very chilly winters. One night, the temperature was falling by 2 degrees Fahrenheit each hour. At sunset, the temperature was -5 degrees Fahrenheit. How many hours will it take for the temperature to reach -19° F?​

Answers

Answer 1

Answer:

7 hours

Step-by-step explanation:

We are given that

At sunset, the temperature=-5 degrees Fahrenheit

Each hour, temperature falling=2degrees Fahrenheit

We have to find time taken to reach the temperature -19° F.

Let x be the time time taken to reach the temperature -19° F

According to question

[tex]-5+x(-2)=-19[/tex]

Where we taking 2 negative because temperature decreases.

[tex]-5-2x=-19[/tex]

[tex]-5+19=2x[/tex]

[tex]14=2x[/tex]

[tex]x=\frac{14}{2}[/tex]

[tex]x=7[/tex]

Hence, it will take 7 hours for the  temperature to reach -19° F.


Related Questions

John needs to wrap the edge of his rectangular desk with duct tape. He knows the width is 10/8 of a meter and the length is 3/8 of a meter. How much duct tape does he need to wrap the desk’s perimeter?

Answers

Answer: 1 and 5/8

Step-by-step explanation:

convert the following to inches

3' 8"

Answers

Answer: 44 inches

Step-by-step explanation:

believe me plz mark me brainliest plz

Answer:

44 inches

Step-by-step explanation:

Which equation shows how to rewrite the sum of 30 and 45 using their greatest common factor? 30 + 45 = 5(6 + 9) 30 + 45 = 15(2 + 3) 30 + 45 = 5(6) + 15(3) 30 + 45 = 5(6)(3)

Answers

Answer: 30 + 45 = 15(2 + 3)

Step-by-step explanation:

The greatest common factor for 30 and 45 will be gotten as follows:

Factor of 30 = 2 × 3 × 5

Factor of 45 = 3 × 3 × 5.

GCF = 3× 5 = 15

Therefore, the equation that shows how to rewrite the sum of 30 and 45 using their greatest common factor will be:

30 + 45 = 15(2 + 3)

If a company employed 50 people in 1995, and tripled their employment by 2005, how many total people would be employed if there are 40% more employees than in 2005 by 2015?​

Answers

Answer:

210 people

Step-by-step explanation:

so we know that the number of employees in 2005 is (50)3= 150

so taking 14/10* 150= we get 14*15= 210 people

❗️HELP ASAP❗️
Which pair of angles is congruent??
F. 21 and 22
G. 21 and 24
H. 24 and 23
I. 24 and 22

Answers

I think the answer is G.

I think this because of the fact families (like my elementary teacher used to say)
It’s like about multiplication of fact families so make it where it would have fact families with those numbers as the sums.
I hope this helps! Be safe out there.

This is a picture of a coordinate grid.
Which ordered pair describes a point that is located 5 units to
the right of the origin and 2 units below the x-axis?

Answers

Answer:

(5,-2)

Step-by-step explanation: the right of the origin is a positive number and below is negative there fore if you go right 5 it would be 5 and down 2 would be -2 .

The ordered pair describes a point that is located 5 units to the right of the origin and 2 units below the x-axis are (5, -2).

What is the coordinate grid?

A coordinate grid has two perpendicular lines, or axes labeled just like number lines. The horizontal axis is usually called the x-axis. The vertical axis is usually called the y-axis. The point where the x- and y-axis intersect is called the origin.

Given a statement for coordinates a point that is located 5 units to

the right of the origin and 2 units below the x-axis,

so the left side of the x-axis is the negative value of x and the right side of x-axis is the positive values of x.

5 units to the right, which is the coordinate of x is 5

and the upper of x-axis is the positive side of the y-axis and down of x-axis is the negative side of the y-axis,

2 units below the x-axis, which is coordinate of y is -2

point is (5, -2).

Hence the coordinates of points are (5, -2).

Learn more about coordinate grid;

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1 of 5
The ratio of boys to girls in a class is 3:4. There are 35 students in the class. How many
students are girls?

Answers

Answer:20 girls

Step-by-step explanation:the difference between 3 and 4 is one so there will be a difference of one between the 2 questions.

PLEASE HELP QUICKLY!!!

Answers

Answer:

sunday

Step-by-step explanation:

i dont want brainliest give it to the other guy

Can someone help me with this question pls and thank you

Answers

Answer:

x>2

Step-by-step explanation:

Longer than two hours is >.

X>2 is the answer I think


Find the slope of the line that
passes through the following
points. (0,0), (-2,-4)

Answers

Answer:

m=2

Step-by-step explanation:

math is hard

Answer:

2

Step-by-step explanation:

The equation for finding slope is:

[tex]\frac{y_{2} - y_{1}}{x_{2}-x_{1}}[/tex]

Plugging in our values of x and y gives us:

(-4 - 0)/(-2-0) =

-4/-2 =

4/2 =

2

A rectangular prism measures 3 1/2 cm long, 2 1/2 cm wide, and 1 1/2 cm high. How many cubes with side lengths of image cm are needed to fill the prism?


A.13 cubes


B.35 cubes


C.6 cubes


D.105 cubes

Answers

Answer:

D. 105

Step-by-step explanation:

D

A card is in the shape of a rectangle. The length of the card is 7 cm
and the area of the card is 35 sq cm. What is the width of the card in
centimeters?

Answers

lol ok so

7*something or you can make it into a variable x=35

7*x=35

/7     /7

x=5.

Please help with math ASAP, will give brainliest!!

Answers

Answer:

45

60

135

150

Step-by-step explanation:

Remember:

1 radian is 57.3 degrees


I am a multiple of 12 . i am between 40 and 50 . who could i be​

Answers

Answer:

48

Step-by-step explanation:

if its not right sorry

There are 63 marbles in a leather bag. Some of the marbles are blue, some are green, some are clear, some are gold, and some are red. Based on experimental probability, there is a 1 in 7 chance of pulling out a blue marble. About how many blue marbles might be in the entire bag?




Group of answer choices

7 blue marbles

13 blue marbles

9 blue marbles

6 blue marbles

Answers

Answer:9

Step-by-step explanation:1/7 of 63 =9

find the simple interest on each amount 1500 at 11% for two years

Answers

Answer:

330.00

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 11%/100 = 0.11 per year,

then, solving our equation

I = 1500 × 0.11 × 2 = 330

I = $ 330.00

The simple interest accumulated

on a principal of $ 1,500.00

at a rate of 11% per year

for 2 years is $ 330.00.

Which table represents a function?
Group of answer choices

Answers

Answer: The answer is C

Step-by-step explanation: If you look at the x’s it is the only one that doesn’t have x’s repeated

You and 3 friends are going to the fair. You have a coupon that will save your group $20. If the total bill to get into the fair was $100, how much does one regular priced ticket to the fair cost?

Equation:

Answer:

Answers

Answer:

one regular ticket costs $30

Step-by-step explanation:

The total number of people = 4

Without  the $20 coupon, the total cost would have been =100+20 = $120

Assume the price of one regular ticket is x;

4x = 120

Divide both sides by 4 to solve for x

x = 120/4

x = 30

Therefore, one regular ticket costs $30

Answer:

$30

Step-by-step explanation:

Since you pay 100 after discount, you add the 20 dollar discount to the 100 ($120)

Then since there are 4 of you in total, (you+ 3 friends), you divide by 4.

And Voila, your answer is $30 per person.

Hope this helps :)

How to calculate 46% of 50

Answers

Answer:

the answer is 23

Step-by-step explanation:

100/50=2

46/2=23

Answer:

23

Step-by-step explanation:

50/x=100/46

(50/x)*x=(100/46)*x       - we multiply both sides of the equation by x

50=2.17391304348*x       - we divide both sides of the equation by (2.17391304348) to get x

50/2.17391304348=x

23=x

x=23

now we have:

46% of 50=23

what is the value of p so that the expession 6x+3-(8x-5) is equivalent to (px+8)?​

Answers

Answer:

-2

Step-by-step explanation:

The first equation simplifies to -2x+8 so p should be replaced with -2

The value of p so that the expression 6x+3-(8x-5) is equivalent to (px+8) is, -2

What are expressions?

An expression is a sentence with at least two numbers or variables having mathematical operation. Math operations can be addition, subtraction, multiplication, division.

For example, 2x+3

Given that,

An expression,  6x+3-(8x-5)

another expression, (px+8)

Value of p for which both the expressions are equivalent = ?

So now, we can compare both the expressions

⇒   6x+3-(8x-5)

⇒  6x+3-8x+5

⇒  -2x+8

if compare it with (px+8)

then, p = -2

Hence, the values of p is -2

To know more about Expressions check:

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Evaluate the following expressions given x=6 and y=-3

Answers

a.

[tex] \purple{5 \times 6 - 4 \times ( - 3)}[/tex]

[tex] = 30 + 12[/tex]

[tex] \blue{ = \boxed{42}}[/tex]

b.

[tex] \purple{ {6}^{2} + \frac{6}{ - 3} }[/tex]

[tex] = 36 - 2[/tex]

[tex] \blue{ = \boxed{34}}[/tex]

c.

[tex] \purple{(6 - 5 {)}^{3} + {( - 3)}^{2} }[/tex]

[tex] = {1}^{3} + 9[/tex]

[tex] = 1 + 9[/tex]

[tex] \blue{ = \boxed{10}}[/tex]

=============================

Hope it helps

=============================

What is -1 1/3 in a decimal

Answers

Answer:

1.333

Step-by-step explanation:

if rounded then it's 0.333

if wrong I apologize

How is the graph of y = - 4x2 – 5 different from the graph of y = -4x2?
A. It is shifted 5 unit(s) down.
C. It is shifted 5 unit(s) up.
B. It is shifted 5 unit(s) left.
D. It is shifted 5 unit(s) right.

Answers

Answer:

C. It is shifted 5 unit(s) up.

Step-by-step explanation:

The y-intercept of the first equation is –5. The y-intercept of the second equation is 0. This means that it moves up by 5 units.

Look at the image below for better understanding:

What is the value of x ??
F. 180
G. 90
H. 40
I. 8

Answers

The value of x is 8

What is X?
Please help!

Answers

Answer:

94

Step-by-step explanation:

the sum of the angles in a triangle add up to equal 180

180-73-13=94

Answer: X = 89°

Step-by-step explanation:

At first glance I could tell this was an isosceles triangle, the angles of an isosceles triangle add up to 180°. So just add 73° + 13° = 91° so then you subtract 91° from 180° and you get 89°.

i have to factorise it in middle term: x^2+2x-3 kindly help

Answers

Answer:

Answer:

Joy definitely does have enough soup for 22 people.

Step-by-step explanation:

Upper Bound: 285ml  turn it to 0.285 L                      10÷2=5

280ml  :

Lower Bound: 275ml turn it  to 0.275 L

Upper Bound: 6.75 L                           0.5÷2=0.25

6.5 Litters  :

Lower Bound:6.25  L

6.75÷0.275=24.54 or 25  

6.25÷0.285=21.92 or 22Answer:

Joy definitely does have enough soup for 22 people.

Step-by-step explanation:

Upper Bound: 285ml  turn it to 0.285 L                      10÷2=5

280ml  :

Lower Bound: 275ml turn it  to 0.275 L

Upper Bound: 6.75 L                           0.5÷2=0.25

6.5 Litters  :

Lower Bound:6.25  L

6.75÷0.275=24.54 or 25  

6.25÷0.285=21.92 or 22

Step-by-step explanation:

Karen recorded the numbers of people getting off her tram. The mean number for 10 stops is 6.3. After the tram stops at the 11th stop, the mean is 8. How many people got off the tram at the 11th stop?

Answers

Answer:

32 people got off

Step-by-step explanation:For the 10th stop, we can get the total number of people that have gotten off

Mathematically, this is the product of the mean and the number of stops

= 10 * 6.3 = 63 people

Now, for the 11th stop, the total becomes

11 * 8.6 = 94.6

PLZ HELP ME ASAP PLZ

Answers

Answer:

14

Step-by-step explanation:

5×2²-2-4

5×4-2-4

20-2-4

18-4

14

Answer:

Rewrite the absolute value equation as four equations without absolute value bars.

5z−2=z+65−2=−(z+6)−(5z-2)=z+6−(5z−2)=−(z+6)

After simplifying, there are only two unique equations to be solved.

5z−2=z+65z−2=−(z+6)

Solve

5z−2=z+6 for z.

Tap for more steps...

z=2

Solve

5z−2=−(z+6)for z.

Tap for more steps...

z=−23

List all of the solutions.

z=2,−23

The result can be shown in multiple forms.

Exact Form:

z=2,−23

Decimal Form:

z=2,−0.6

Step-by-step explanation:

it is 0.6

help me I'm stuck on this assignment problem ​

Answers

Answer:

pi^4

Step-by-step explanation:

In a problem like this you subtract exponents

11 - 7 = 4

pi^4

Divide.

511÷411
Enter the correct answer in the box.

Answers

Answer:

1.24

Step-by-step explanation:

Answer:

1.24330900243

Step-by-step explanation:

I did the whole equation on paper

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