Question

it cost $3.50 a gallon for gas. Give an expression that represents the total cost, c, of gas given the number of gallons, g then determine the cost of 5 gallons of gas

Answer 1

Explanation:

We know that it costs 3.50 dollars for a gallon of gas, so we can write the total cost as an expression.

Expression: c= 3.50g

To find the total cost for 5 gallons, plug 5 into the variable, g.

c= 3.50g

c= 3.50(5)

c= 17.5 dollars