Proportional Relationships to Solve Rate Problems

Select the correct situation and solution for the proportion above.

• Ms. McGuire uses ³/₄ of a cup of sugar to bake 64 cookies. How much sugar will she need for 24 cookies?

• Mrs. Garcia uses ³/₄ of a teaspoon of vanilla to bake 24 brownies. How much vanilla will she need for 64 brownies?

• Ms. Dawe uses ³/₄ of a bag of chocolate chips to make 24 cupcakes. How many cupcakes can she make with 64 bags of chocolate chips?

• x = 2

• x = 3.5

View question in the picture then select the best answer

• A

• B

• C

• D

How much interest?

• $7.50

• $26.25

• $87.5

• $262.50

The number of mosquitoes at the beginning of the summer was 4,000. The population of mosquitoes is expected to grow at a rate of 25% a month. How many mosquitoes will there be after 4 months? Round your answer

• 9766

• 9006

• 9765

• 5433

View question in the picture then select the best answer

• A

• B

• C

• D

Beth borrows $5000 to build a deck. If she pays $200 of interest and the loan was for 1 year, what was the interest rate (as a percent) on the loan?

• .04%

• 4%

• .4%

• 40%

There are 36 boys on a school bus. If 60% of the students on the bus are girls, how many total students are there? Use a proportion to solve.

• 74 students

• 90 students

• 69 students

• 81 students

To solve for missing info in a proportion statement you must first

• Cross multiply

• Divide everything

• Get rid of variables

• Guess

Find the sales tax only

$34.00 for movie tickets; 6.625% tax.

You can use a calculator.

• $ 2.25

• $ 2.83

• $ 2.37

• $ 36.38