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3 years ago

junaid delivers 150 newspaper in 3 hours on his route. what is the rate per hour at which he delivers

Mathematics

1 answer:

Lapatulllka [165]3 years ago

7 0

150/3 = 50
50 per hour

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Which of the following is the equation of a line perpendicular to the line y=-3/2x+4 passing through the points (3,9)

Luba_88 [7]

<span>Y-y1=m(x-x1)

Y-9 =2/3 (x-3)

Y-9=(2/3)x - 2

Y=(2/3)x + 7

Heres some formulas...</span>

5 0

3 years ago

Solve the equation. Then check your solution.4- 3/5(3a+4)=7A. -7.4B. -6C. 3D. -3

Evgesh-ka [11]

Answer: a = -3

Explanations:

The given equation is:

$4\text{ - }\frac{3}{5}(3a+4)\text{ = 7}$

This can be re-written as:

$4-\frac{3(3a+4)}{5}=7$

Collect like terms:

$\begin{gathered} -\frac{3(3a+4)}{5}=\text{ 7 - 4} \\ -\frac{3(3a+4)}{5}=\text{ 3} \end{gathered}$

Cross multiply:

$\begin{gathered} -3(3a+4)\text{ = 3}\times5 \\ -3(3a+4)=\text{ 15} \\ \text{Expand the bracket} \\ -9a\text{ - 12 = 15} \\ \text{Collect like terms} \\ -9a\text{ = 15 + 12} \\ -9a\text{ = 27} \\ \text{Divide both sides by -9} \\ \frac{-9a}{-9}=\frac{27}{-9} \\ a\text{ = -3} \end{gathered}$

To verify if the solution is correct, substitute a = -3 into the question given. If the Right Hand Side equals the Left Hand Side, then the solution is correct.

$\begin{gathered} 4-\frac{3(3a+4)}{5}=\text{ 7} \\ \text{Substitute a = }-3 \\ 4\text{ - }\frac{3(3(-3)+4)}{5}\text{ = 7} \\ 4\text{ - }\frac{3(-9+4)}{5}\text{ = 7} \\ 4\text{ - }\frac{3(-5)}{5}\text{ = 7} \\ 4\text{ - }\frac{-15}{5}=\text{ 7} \\ 4-(-3)=7 \\ 4+3=7 \\ 7=7 \end{gathered}$

Since the Left Hand Side = Right Hand Side = 7, the solution a = -3 is correct

5 0

1 year ago

Solve the equation below. If the solution is not an integer, give it in fractional form reduced to lowest terms.

Lina20 [59]

Answer:

x = 21

eliminate the denominator of 4

you can do this buy multiplying both sides by 4

x -9 = 12

x = 21

6 0

3 years ago

If cut a pie into 10 equal size pieces, and then I of those pieces, what is the numerator and the denominator of the fraction re

Pepsi [2]

Answer:

you ate 1/10 and 9/10 of the pie is left

Step-by-step explanation:

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3 years ago

I have a question what is 12•3

Free_Kalibri [48]

12•3=36 it help you have a great fay

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3 years ago

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