Rate and Ratio Problems

How do you express a ratio in simplest form?

• Multiply both quantities in the ratio by their least common multiple.

• Divide both quantities in the ratio by their greatest common divisor.

• Add both quantities in the ratio together.

• Subtract the smaller quantity from the larger quantity.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

How do you calculate the number of hops made in a different time frame?

• Add the number of hops made in the previous time frame to the new time frame.

• Use the rate of hops per second to find the total hops in the new time frame by multiplying the rate by the new time.

• Count the total number of hops made in the previous time frame and divide by the new time.

• Estimate the number of hops based on the average speed of hopping.

Tags

CCSS.6.RP.A.3B

If Tyler scores 22 home runs in 7 games, how do you find his expected score in 21 games?

• Set up a proportion: 22/7 = x/21, then solve for x to find 66 home runs.

• Multiply 22 by 3 to find 66 home runs directly.

• Add 22 and 21 to get 43 home runs.

• Divide 22 by 7 to find an average and multiply by 21.

Tags

CCSS.7.RP.A.3

What is the relationship between ears of corn and peppers in a harvest?

• For every 16 ears of corn, 18 peppers are picked, showing a ratio of 16:18.

• For every 10 ears of corn, 12 peppers are picked, showing a ratio of 10:12.

• For every 20 ears of corn, 15 peppers are picked, showing a ratio of 20:15.

• For every 14 ears of corn, 14 peppers are picked, showing a ratio of 14:14.

What is the unit rate?

• A rate where the second quantity is 1, showing how much of one quantity corresponds to one unit of another quantity.

• A rate that compares two different units without any specific relation.

• A rate that is always greater than 1, indicating a higher quantity.

• A rate that is used only in financial transactions.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

If Lula makes 24 hops in 30 seconds, how many hops does she make in 50 seconds?

• 30 hops

• 35 hops

• 40 hops

• 45 hops

Tags

CCSS.6.RP.A.3B

If 6 tablespoons of plant food are needed for 2 gallons of water, how much is needed for 6 gallons?

• 12 tablespoons of plant food.

• 15 tablespoons of plant food.

• 18 tablespoons of plant food.

• 24 tablespoons of plant food.

Tags

CCSS.6.RP.A.3B

How do you solve a rate problem?

• Identify the quantities involved and use addition to find the unknown quantity.

• Identify the quantities involved, set up a proportion if necessary, and use multiplication or division to find the unknown quantity.

• Use subtraction to compare the quantities and find the unknown quantity.

• Estimate the quantities involved and guess the unknown quantity.

Tags

CCSS.6.RP.A.3B

How do you find the total cost when given a price per pound?

• Add the price per pound to the total number of pounds.

• Divide the total number of pounds by the price per pound.

• Multiply the price per pound by the total number of pounds.

• Subtract the price per pound from the total number of pounds.

Tags

CCSS.7.EE.B.3

If 9 peppers have been picked, how do you find the number of ears of corn picked?

• Set up a proportion: 18 peppers corresponds to 16 ears of corn, then solve for the number of ears of corn.

• Count the number of peppers and multiply by 2 to find the ears of corn.

• Use the formula: ears of corn = peppers / 2.

• Subtract the number of peppers from 20 to find the ears of corn.

Tags

CCSS.7.RP.A.3