Final answer:
To find out how many cups of sauce Paul used altogether, multiply the amount of sauce for one pizza by the number of pizzas made. After calculation, we find that Paul used 5 1/4 cups of sauce in total for 7 homemade pizzas.
Step-by-step explanation:
The student asked: Paul made 7 homemade pizzas. He used 3/4 of a cup of sauce for each pizza. How many cups of sauce did he use altogether? To solve this mathematical problem, we need to multiply the amount of sauce used for one pizza by the total number of pizzas made.
Step 1: Determine the total amount of sauce for one pizza, which is 3/4 cup.
Step 2: Multiply this amount by the total number of pizzas, which is 7.
Step 3: Perform the multiplication: (3/4) x 7 = 21/4.
Step 4: Convert the improper fraction to a mixed number: 21/4 is 5 1/4 cups of sauce.
Therefore, Paul used a total of 5 1/4 cups of sauce to make 7 homemade pizzas.