Answer:
a=2, b = 1, m=9
Step-by-step explanation:
i. 7 = 2a+3 -----> 4=2a---------> a=2
ii. -1 = 2b-3 -------> 2 = 2b ------> b = 1
iii. 2(3)+3 = m -------> 6+3 = m -------> m=9
Hope this helps!!! :D
solve each proportion .
120/160=15/y
(fractions)
please help me :(
Answer:
Y = 20
Step-by-step explanation:
120/ 160 = 15 / y
120/15=8
that means there is a 8 to 1 ratio between them. So now do 160/8 = y
y = 20.
prove it by dividing both fractions to create decimal form. They match, so y = 20.
Marcel reads 20 pages every other day Xion reads 8 pages every day Amber reads 56 pages every 7 days Francessca reads 55 pages every 5 days Which one of these will get to 350 pages first? State the number of days they will take to complete it.
Answer:
Marcel reads 20 pages every 2 days.
Then, in one day, she reads:
20/2 = 10 pages per day.
Now, we know that in one day she reads 10 pages, then we can subdivide the number 350 in N groups of 10 pages, each one of these N groups needs one day to be read, then 350 pages will be read in N days:
N = 350/10 = 35 days.
Xion reads 8 pages per day.
Then to read 350 pages, he neds:
N = 350/8 = 43.75 days
Amber reads 56 pages in 7 days.
Then she reads 56/7 = 8 pages per day (Same as Xion)
Then she also needs 43.75 days to read 350 pages.
Francessca reads 55 pages in 5 days.
Then she reads 55/5 = 11 pages per day.
To read 350 pages, she needs:
350/11 = 31.82 days
Then the one that needs less days to read 350 pages is Francessca.
Which graph shows the solution to the inequality –0.5x ≤ 7.5?
__________________________________________________
A) A number line going from negative 18 to negative 8. A closed circle is at negative 15. Everything to the right of the circle is shaded.
B) A number line going from negative 18 to negative 8. A closed circle is at negative 15. Everything to the left of the circle is shaded.
C) A number line going from negative 5 to negative 2.5. A closed circle is at negative 4. Everything to the right of the circle is shaded.
D) A number line going from negative 5 to negative 2.5. A closed circle is at negative 4. Everything to the left of the circle is shaded.
__________________________________________________
Answer:
The first option
Step-by-step explanation:
Finished assignment
Answer:
the first option
Step-by-step explanation:
Adam bought a hat for $12 and three shirts. If each shirt was the
same price and his bill was $54, how much was each shirt?
Answer: $14 each shirt
Step-by-step explanation:
54 - 12 = 42 ÷ 3 = 14
f(x+h) = (x+h)² + 3(x+h)^3
How would I distribute this?
Answer:
f(x + h) = 3x³ + x² + 9h²x + 3h³ + h² + 9hx² + 2hx
General Formulas and Concepts:
Order of Operations: BPEMDASDistributive PropertyExpand by FOIL (First Outside Inside Last)Combining like termsStep-by-step explanation:
Step 1: Define function
f(x) = x² + 3x³
f(x + h) is x = x + h
Step 2: Simplify
Substitute: f(x + h) = (x + h)² + 3(x + h)³Expand by FOILing: f(x + h) = (x² + 2hx + h²) + 3(x + h)³Rewrite: f(x + h) = (x² + 2hx + h²) + 3(x + h)²(x + h)Expand by FOILing: f(x + h) = (x²+2hx+h²) + 3(x² + 2hx + h²)(x+h)Distribute/Expand: f(x + h) = (x²+2hx+h²) + 3(x³+3hx²+3h²x+h³)Distribute 3: f(x + h) = (x²+2hx+h²)+(3x³+9hx²+9h²x+3h³)Combine like terms: f(x + h) = 3x³+x²+9h²x+3h³+h²+9hx²+2hxFind the value for x
Can somebody help me?
Please
Answer:
1-7 2-6 3-6 4-4
Step-by-step explanation:
To do this, you must notice that all of these are isosceles triangles (2 of the sides are the same.) You already have 1 value on each triangle, and the length of that side is the same length as the side with the unknown value, so those are the correct answers. If I made a mistake, please correct me. Everybody makes mistakes.
Translate this sentence into an equation.
51 is the sum of 17 and Chrissy's height.
Use the variable c to represent Chrissy's height.
Answer:
c + 17 = 51
Step-by-step explanation:
Andrew and Kate have $30 to spend on dinner, tax, and gratuity at Mo’s Restaurant. Tax is 6%, and they will give a 15% tip on the total bill after taxes. Their dinner costs $21.00. Which statement correctly explains whether Andrew and Kate have enough money to pay their bill?
Yes. They have enough to pay their bill: 30 dollars times 1.06 = 31 dollars and 80 cents and 31 dollars and 80 cents times 1.15 = 36 dollars and 57 cents.
Yes. They have enough to pay their bill: 21 dollars times 1.06 = 22 dollars and 26 cents and 22 dollars and 26 cents times 1.15 = 25 dollars and 60 cents.
No. They do not have enough to pay their bill: 30 dollars times 1.06 = 31 dollars and 80 cents and 31 dollars and 80 cents times 1.15 = 36 dollars and 57 cents.
No. They do not have enough to pay their bill: 21 dollars times 1.06 = 22 dollars and 26 cents and 22 dollars and 26 cents times 1.15 = 25 dollars and 60 cents
Answer:
Yes. They have enough to pay their bill: 21 dollars times 1.06 = 22 dollars and 26 cents and 22 dollars and 26 cents times 1.15 = 25 dollars and 60 cents.
Answer:
A
Step-by-step explanation:
so 900x900= answer: 810000
Answer:
That is correct
Answer:
yes its correct
Step-by-step explanation:
Find the value of x.
(5x + 5)
5( x + 1)
I hope this helps:)
Fill in the missing numbers in these equation
(-2) . (-4.5)= ?
?=
Suppose a stage for the Lunar New Year festival has a length of 24 feet and a width of 4x + 4 feet. If the area of the stage is 384 square feet, what is the value of x?
Answer:
The value of x is 3
Step-by-step explanation:
The stage is rectangular in shape.
The formula for area of a rectangle is:
Length × Width
Length = 24 feet
Width = 4x + 4 feet
Hence:
384 = (4x + 4) × (24)
384 = 96x + 96
Collect like terms
384 - 96 = 96x
288 = 96x
x = 288/96
x = 3
The value of x is 3
Please answer correctly !!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!!
Answer:
79°
Step-by-step explanation:
A straight line is 180°.
180°-101°=79°
Find the surface area of this cuboid.
3 cm
5 cm
2 cm
Answer:
62 cm^2
Step-by-step explanation:
the sides are 3*5, 3*2, and 2*5, and there are two of each. 3*5 is 15, 3*2 is 6, and 2*5 is 10.
we need to find 15*2, which is 30, 6*2, which is 12, and 10*2 which is 20. then we need to add all of these together, which is 62
Combine like terms: 3x + 2x + 3y - 7y
Answer:
5x-4y
Step-by-step explanation:
1, Look for your like terms (x,y)
2.Do 2X+5X
3. 3y-7y
4. 5x-4y
Answer:
5x - 4y
Step-by-step explanation:
3x + 2x = 5x
3y- 7y = -4y
is 1/5 a integer rational irrational or real. (there can be more than one answer)
Answer:
rational
Step-by-step explanation:
A rational number is a number that can be expressed (for example, 1/3 is irrational) Hope I helped! Please mark Brainliest!!!
Please help
Find the distance between points P(2, 2) and Q(7, 4) to the nearest tenth.
7
5.4
10.8
4.5
Answer:
5.4
Step-by-step explanation:
since they are 5 apart on the x-axis, and 2 on the y-axis. You'd multiply by the power of 2 add both of them together and square root. Giving you about 5.38516 rounding to the nearest tenth of 5.4
If g(x) = 8-2 (3x-4) what is the value of g(-5)
Answer: 46
Step-by-step explanation: g(-5)= 8-2 (3(-5)-4), equals 46! Hope this helps :)
i need help plz its due in 30 minutes
Answer:
is 2/3 times - 13/12=- 5/12 times
Step-by-step explanation:
Graham drove 42 1/3 miles in 1 1/3 hours
How many hours did he take to drive one mile?
Answer: 1.89 minutes
Step-by-step explanation: If we take 1 and 1/3 hours and turn that into minutes we get 80 minutes we then divide it by the number of miles 42 1/3. We would get about 1.89, so it took about 1.89 minutes
help a girl out due at 11:59 ♀️
Answer:
your answer woulsd be 4/15 or how many times does 4 gois in ta 15
Step-by-step explanation:
Sara has a balance on her credit card of $212.45. She writes a check for $165.45 towards her credit card balance. After she has paid, how much more money will she need to pay to have a zero balance?
ANSWER: 47 .....................................................................................................................................................................................
Which of the following cannot be simplified?
Answer:
C
Step-by-step explanation:
Answer:
c. 8x-1
Step-by-step explanation:
all of the other ones can be simplified in some way
A squirrel runs across a road in 3 seconds. The road was more than 34 feet wide.
_______________________________________________________
Which inequality can be used to determine the squirrel’s speed?
_____
What is the solution to the inequality? Round to the nearest tenth, if necessary.
_____
How can you interpret the solution?
_____
_______________________________________________________
A) 3r > 34,
3r 34
r/3 11.3
r 10.2
C) the squirrel ran at least 11.3 feet per second
the squirrel ran faster than 11.3 feet per second
the squirrel ran no faster than 102 feet per second
the squirrel ran slower than 102 feet per second
_______________________________________________________
Answer:
✔ 3r > 34
✔ r > 11.3
✔ The squirrel ran faster than 11.3 feet per second.
Step-by-step explanation:
1. The Squirrel's speed is 3r > 34
2. The solution of the inequality is r > 11.3
3. The interpretation is: The squirrel ran faster than 11.3 feet per second.
What is Inequality?Mathematical expressions with inequalities are those in which the two sides are not equal. Unlike to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.
A squirrel runs across a road in 3 seconds.
The road was more than 34 feet wide.
1. The Squirrel's speed is
3r > 34
2. The solution of the inequality is
r > 34/3
r > 11.3
3. The interpretation is: The squirrel ran faster than 11.3 feet per second.
Learn more about Inequality here:
https://brainly.com/question/30231190
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for each graph below, state wether it represents a function.
Answers:
Row 1: No, No, No
Row 2: Yes, Yes, Yes
===============================
Explanation:
Use the vertical line test. If it is at all possible to draw a single vertical line through more than one point on the relation curve, then the relation is not a function. This is because a function is only possible when any x input leads to exactly one y output.
So that's why graphs 1,2,3 are not functions, while graphs 4,5,6 are functions.
Solve for the following equation
1/2(2 – 4x) + 2x = 13
Answer:
no solution
Step-by-step explanation:
1/2(2-4x)+2x=13
We simplify the equation to the form, which is simple to understand
1/2(2-4x)+2x=13
Simplifying:
+ 0.5*(2-4x)+2x=13
Reorder the terms in parentheses
+(+1-2x)+2x=13
Remove unnecessary parentheses
+1-2x+2x=+13
We move all terms containing x to the left and all other terms to the right.
-2x+2x=+13-1
We simplify left and right side of the equation.
0x=+12
0=12
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
(9+7i)+(-5-31) =
add complex numbers
Answer:
4 + 4i
Step-by-step explanation:
Add the real part and add the imaginary part.
9 + 7i + (-5 - 3i) = 9 + 7i - 5 - 3i
= 9 - 5 + 7i - 3i
= 4 + 4i
Answer:
44
Step-by-step explanation:
Okay so we are given (9 + 71) + (-5 - 31).
We need to figure out the value of this expression.
First, let's solve the expression (9 + 71).
1. (9 + 71) = 80.
Now we have 80 + (-5 - 31).
Next, let's solve the expression (-5 - 31).
2. (-5 - 31) = -36.
We're left with 80 + (-36).
Finally, let's add the two numbers together.
80 + (-36) = 44
So (9 + 71) + (-5 - 31) = 44
Feel free to give brainliest.
Have an excellent day!
51:03
Review the four points shown on the polar coordinate
system.
Which point represents (3, - )?
2/2
2003
03
O point A
O point B
O point
O point D
56
B
2/6
A
0
2 4 6
co
D
THB
11:06
413
5/3
302
Mark this and return
Save and Exit
Next
Submit
Answer:
Point A
Step-by-step explanation
Got it correct on edge test
Point A represents (3, - ). Therefore, the correct option is option A among all the given options.
What is coordinate?A coordinate system in geometry is a method for determining the precise location of points or other geometrical objects on a manifold, such as Euclidean space, using one or more integers, or coordinates. It matters how the coordinates are arranged.
Sometimes they are recognised by their place in an ordered tuple, and other times they are recognised by a letter, such as "the x-coordinate." In elementary mathematics, the coordinates are assumed to be real numbers. Point A t represents (3, - ).
Therefore, the correct option is option A.
To know more about coordinate, here:
https://brainly.com/question/22261383
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The total bill at a restaurant was $52.50. If you want to tip the waitress 15%, how much tip should you leave?
A. $7.87
B. $7.88
C. $78.70
D. $78.75
Answer:
B
Step-by-step explanation:
52.50*0.15=7.875
7.875 rounded is 7.88
hope this helps :3
if it did pls mark brainliest
Answer:
B)$7.88
Step-by-step explanation:
15% = 0.15
52.50 x 0.15 = 7.875
Round to the nearest hundredth
$7.88
PLEASE HELP QUICKLY
What is the value of y
Answer:
y= 8
Step-by-step explanation:
In a Triangle we know,
W+Y+X=180 degree
then,
(180-52)+(4y-4)+3y=180
or, 128+4y-4+3y= 180
or, 7y= 180- 124
or, y= 56/7
or, y= 8
hope you got it.