A gallon of gasoline costs g dollars. Paul puts 12.5 gallons in his car and 0.75 gallon of gasoline in a portable tank. Write an expression that shows how many dollars he spent on gasoline .
12.5g + 0.75 g = $_____
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You're welcome, Amy.
To find the total amount Paul spent on gasoline, we need to calculate the cost of 12.5 gallons of gasoline for his car and 0.75 gallons for the portable tank.
Let's denote the cost of a gallon of gasoline as "g dollars".
For the car, the cost of 12.5 gallons of gasoline would be: 12.5 * g.
For the portable tank, the cost of 0.75 gallon of gasoline would be: 0.75 * g.
To calculate the total amount Paul spent on gasoline, we need to add these two expressions together:
12.5 * g + 0.75 * g.
Simplifying this expression, we can factor out "g" from each term:
g * (12.5 + 0.75).
Thus, the expression that shows how many dollars Paul spent on gasoline is g * (12.5 + 0.75).