Ratio and Rate Reasoning

Front

What is the formula to calculate average speed?

Back

Average speed = Total distance / Total time.

Front

If a car travels 370.5 miles in 6.5 hours, how do you calculate its average speed?

Back

Convert 6.5 hours to hours (6.5 hours = 6 hours + 0.5 hours = 6 hours 30 minutes). Then use the formula: Average speed = 370.5 miles / 6.5 hours = 57 mph.

Front

How do you convert feet to yards?

Back

To convert feet to yards, divide the number of feet by 3, since 1 yard = 3 feet.

Front

If John's garden is 12 ft long and 15 ft wide, what is its area in square feet?

Back

Area = length x width = 12 ft x 15 ft = 180 square feet.

Front

What is the conversion factor from pounds to ounces?

Back

1 pound = 16 ounces.

Front

How do you calculate the weight in ounces if a child weighs 83 pounds?

Back

Weight in ounces = 83 pounds x 16 ounces/pound = 1,328 ounces.

Front

What is the average speed of a car that travels 104 miles in 4 hours?

Back

Average speed = Total distance / Total time = 104 miles / 4 hours = 26 miles per hour.

Front

If 12 pencils cost $3, how do you find the cost per pencil?

Back

Cost per pencil = Total cost / Number of pencils = $3 / 12 pencils = $0.25 per pencil.

Front

How many pencils can be purchased with $4.50 if 12 pencils cost $3?

Back

First, find the cost per pencil ($0.25). Then, divide $4.50 by $0.25 to find the number of pencils: $4.50 / $0.25 = 18 pencils.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing the relative size of one quantity to another.