Question

Luke is building a storage building and needs to have a slab of concrete poured. He knows the contractor charges an initial cost of $95 plus an additional $3.50 per square foot of concrete. Which equation can be used to determine the cost (y), in dollars, to pour a concrete slab with an area of x square feet?

A) y = 3.5x + 95
B) y = 9.5x + 3.5
C) y = 95x + 3.5
D) y = 98.5x

Answer 1

the answer is A. If y is the total cost, than you would need to multiply x, the number additional number of square feet, which is 3.5x. you would then add 95 dollars to the equation to represent the initial fee. So the equation would look like Y=3.5x+95.

Answer 2

Answer: A)
`y = 3.5x + 95`

Explanation:

Given: The initial cost charged by contractor = $95

The additional cost charged by contractor per square foot of concrete= $3.50

Then the total cost to pour a concrete slab with an area is given by :-

`\text{Total cost=95+3.50*Area}`

Let x represents the area of concrete slab in square feet.

Then the equation can be used to determine the cost (y), in dollars, to pour a concrete slab with an area of x square feet is given by :-

`y=95+3.5x`