# The rule of proportions - Problem situations

**Hello dear students **

**Use the rule of proportions to solve the following exercises. Remember to establish the proportions for you to apply the formula. If you have any question do not hesitate to ask me in class. This test will be collected next Friday the 23rd of February. Do not forget to deliver also the sheet of procedures. **

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- Philip spent 10 minutes on the phone while routing 5 phone calls. If he routes 16 phone calls, how much time will Philip have spent on the phone in total? Assume the relationship is directly proportional.

- Carson took a total of 12 quizzes over the course of 3 weeks. After attending 4 weeks of school this quarter, how many quizzes will Carson have taken in total? Assume the relationship is directly proportional.

- Laverne prepared 15 kilograms of dough after working 5 hours. How much dough did Laverne prepare if she worked for 8 hours? Assume the relationship is directly proportional.

- Trisha baked 15 cookies with 3 scoops of flour. How many scoops of flour does Trisha need in order to bake 30 cookies? Assume the relationship is directly proportional.

- Diego jarred 35 liters of jam after 7 days. How much jam did Diego jar if he spent 10 days making jam? Assume the relationship is directly proportional

- Denise used 10 centimeters of tape to wrap 2 presents. How many presents did Denise wrap if she used 15 centimeters of tape? Assume the relationship is directly proportional.

- Vince's birthday party will cost $6 if he invites 3 guests. If there are 4 guests, how much will Vince's birthday party cost? Assume the relationship is directly proportional.

- Kate prepared 15 kilograms of dough after working 3 hours. How many hours did Kate work if she prepared 50 kilograms of dough? Assume the relationship is directly proportional.

- Jenny jarred 6 liters of jam after 2 days. How many days did Jenny spend making jam if she jarred 30 liters of jam? Assume the relationship is directly proportional.

- Rosa read a total of 18 books over 3 months. If Rosa has read 36 books so far, how many months has she been with her book club? Assume the relationship is directly proportional.

- Vince took a total of 81 quizzes over the course of 9 weeks. How many weeks of school will Vince have to attend this quarter before he will have taken a total of 90 quizzes? Assume the relationship is directly proportional

- Diane read a total of 10 books over 2 months. If Diane has read 15 books so far, how many months has she been with her book club? Assume the relationship is directly proportional.