Question

Ross is shopping for mulch that costs $1.29 per cubic foot. During his first trip to the store, he bought 16.5 cubic feet. He needs another 4.5 cubic feet to complete his landscaping project. What expression shows the total cost in dollars of the mulch?

Answer 1

1.29(16.5+4.5)!!!!!!!!!!!!!!!!!!!!!!!

Answer 2

`1.29 * 45+1.29 * 16.5` or
`1.29 (45+16.5)`

Explanation:

Given :

Ross is shopping for mulch that costs $1.29 per cubic foot.

During his first trip to the store, he bought 16.5 cubic feet. He needs another 4.5 cubic feet to complete his landscaping project.

To Find: What expression shows the total cost in dollars of the mulch?

Solution:

Cost of 1 cubic foot = $1.29

Cost of 16.5 cubic feet =
`1.29 * 16.5`

Cost of 4.5 cubic foot =
`1.29 * 45`

So, Total cost :
`1.29 * 45+1.29 * 16.5`

`1.29 (45+16.5)`

So, expression shows the total cost in dollars of the mulch is :

`1.29 * 45+1.29 * 16.5` or
`1.29 (45+16.5)`