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3 years ago

15

it cost Andrea $50 per day to rent a moving truck and an additional $3 for every mile that she drove it. It Andrea spent a total

of $104 after renting the truck for 1 day, which equation shows how many miles Andre drove?

1 answer:

Xelga [282]3 years ago

3 0

104=3m-50 is the equation that I would use, because 104 is the total, and it’s 3 dollars per mile, and $50 of the total is the initial fee. Sorry if the explanation isn’t the best, I’m kinda bad at them haha. Good luck!

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lara [203]

What’s the question tho?

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3 years ago

20) Which of the following is in ascending order?

Lelechka [254]

<h3><u>Answer:- </u></h3>

$\longrightarrow \sf h) \:\:\dfrac{2}{3},0.67,70\%,0.8$

<h3><u>Solution:-</u></h3>

Let us first write all the provided number in decimal

$\quad\leadsto\sf \dfrac{2}{3}= 0.\bar{66}$

$\quad\leadsto\sf 70 \% = \dfrac{70}{100}$

$\quad\quad\quad\implies\sf 0.7$

$\quad\leadsto 0.67$

$\quad\leadsto 0.8$

<u>Comparing all the numbers </u><u>now </u><u>-</u>

$\longrightarrow \sf 0.\bar{66}$

$\longrightarrow\sf \dfrac{2}{3}$

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2 years ago

A notebook has a perimeter of 36 inches. It’s area is 80 square inches. What are the dimensions of the notebook

earnstyle [38]

Let's call he width of the notebook w and the length l

w*l=80

2(w+l)=36
w+l=18
w=18-l

(18-l)*l=80
-l^2+18*l-80=0
l=8 or 10

Therefore, the notebook is 8 by 10 inches

7 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

Susie use the one have to help compare 1/3 to 3/5 and to help in comparing 3/7 with 2/3 explain how 1/2 helps determine which fr

gogolik [260]

The fraction $\frac{3}{5}$ and $\frac{2}{3}$ are the greatest in each combination.

Explanation:

Comparing the fraction $\frac{1}{2}$ with $\frac{1}{3}$ and $\frac{3}{5}$ to find the greatest value.

The fraction $\frac{1}{2}>\frac{1}{3}$ and $\frac{1}{2}$

Thus, $\frac{1}{3}$

Hence, $\frac{3}{5}$ is the greatest value in this combination.

Also, Comparing the fraction $\frac{1}{2}$ with $\frac{3}{7}$ and $\frac{2}{3}$ to find the greatest value.

The fraction $\frac{1}{2}>\frac{3}{7}$ and $\frac{1}{2}$

Thus, $\frac{3}{7}$

Hence, $\frac{2}{3}$ is the greatest value in this combination.

8 0

3 years ago