Question

A hardware store pays $3,500 for 42 lawnmowers. Then the store sells the lawnmowers for $99 each. How much profit does the store make from the lawnmower sales?

I think the equation is 99×42, and then you subtract that number from $3,500.
Please tell me if i am right, if i am wrong, please tell me how to do it.

Answer 1

you should first have the equation 3500=42x and then solve x which is 83.3 repeating. then subtract 83.3 from 90 which gets the store a profit on 7.7 dollars per lawnmower

Answer 2

The total profit of the store by selling the lawnmower is $658.

Total Cost

The total cost of a number of items of similar type is the product of the price of each unit and the number of units bought.

$\rm{Total\ Cost= Price/unit \times Number\ of\ units$

Given to us

• A hardware store pays $3,500 for 42 lawnmowers.
• the store sells the lawnmowers for $99 each.

Total cost of all the lawnmowers

The total cost of all the lawnmowers is given to us as $3,500 also the number of lawnmowers are given 42.

Total earnings through the lawnmowers

As the store sells each lawnmower for $99, the total earnings through the lawnmowers to the store,

$\begin{aligned}Total\ earning\ of\ lawnmowers&= Selling\ Price/unit \times Number\ of\ units\ sold\\&= \ 99\times 42\\& = \ 4,158 \end{aligned}$

Total profit of the store

The total profit of the store

= Total earning through the sale of lawnmowers - Total cost of lawnmowers

$= \ 4,158 - \ 3,500\\= \ 658$

Hence, the total profit of the store by selling the lawnmower is $658.

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