Question

You have $3 and earn $7.50 for each car you wash. Write an equation in two variables that represents the total amount A (in dollars) you have after washing c cars.

Answer 1

`A=3+7.50c` is the equation.

Explanation:

Given:

You have $3 and earn $7.50 for each car you wash.

Now, to write an equation in two variables that represents the total amount A after washing c cars.

So, the total amount be
`A.`

And, the number of cars be
`c.`

The amount earn of washing each car = $7.50.

The amount having = $3.

Now, to write an equation representing the total amount:

`A=3+7.50(c)\\\\A=3+7.50c`

Hence,
`A=3+7.50c` is the equation.