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McGraw-Hill Math Grade 7 Answer Key Lesson 13.1 Ratios
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Question 1.
Jennifer is making a cake that requires 2 cups of flour and 1 cup of milk. What is the ratio of flour to milk?
Answer:
Jennifer is making a cake that requires 2 cups of flour and 1 cup of milk.
2 cups of flour/ 1 cup of milk
A cake that requires the ratio of flour to milk is 2:1 or 2/1.
Question 2.
At the movie theatre the manager wants to know which movie is selling the most tickets. He finds that movie A sold 150 tickets and movie B sold 100 tickets. What is the ratio of sales of movie A to movie B? Reduce your answer.
Answer:
At the movie theatre movie A sold 150 tickets and movie B sold 100 tickets.
Movie A/movie B = 150/100 = 3/2
The ratio of sales of movie A to movie B is 3:2 or 3/2.
Question 3.
Judy and Nancy have been swimming at the pool for one hour a day for the last month. Judy averages 25 laps every hour while Nancy averages 18. What is the ratio of Judy’s average to Nancy’s average?
Answer:
Judy averages 25 laps every hour.
Nancy averages 18 laps every hour.
25 laps/18 laps
The ratio of Judy’s average to Nancy’s average is 25:18 or 25/18.
Question 4.
Michael and Leon get ice cream cones, Michael orders chocolate chip and Leon orders yogurt chip. They each count the number of chocolate chips and yogurt chips that they eat until they finish. Michael had 32 and Leon 17. What is the ratio of yogurt chips to chocolate chips in the ice cream?
Answer:
Michael had 32 chocolate chips in the ice cream.
Leon had 17 yogurt chips in the ice cream.
The ratio of yogurt chips to chocolate chips in the ice cream is 17:32 or 17/32.