7th Grade STAAR Review: Adding and Subtracting Rational Expressions

How do you convert Allen's music listening time from percentage to hours?

• Multiply by 24 and divide by 100

• Add to 100 and divide by 24

• Divide by 24 and multiply by 100

• Subtract from 100 and multiply by 24

What is the difference in hours between Allen's music and tennis activities?

• 1.48 hours

• 2.4 hours

• 2.88 hours

• 0.48 hours

What percentage of Allen's day is spent on music?

• 12%

• 10%

• 22%

• 2%

What is the correct way to express 48 hundredths of an hour in hours?

• 0.48 hours

• 2.88 hours

• 48 minutes

• 28.8 minutes

How many miles will the boat travel in half an hour?

• 3.375 miles

• 13.5 miles

• 27 miles

• 6.75 miles

What method can be used to find the distance a boat travels in a given time?

• Dividing the distance by speed

• Multiplying by the total hours

• Using a T-chart and halving

• Subtracting from the total distance

To find the distance traveled in half an hour, you would:

• Divide the two-hour distance by 4

• Multiply the two-hour distance by 0.25

• All of the above

• Halve the one-hour distance

What is the volume of Elena's square pyramid model?

• 300 cubic centimeters

• 100 cubic centimeters

• 1200 cubic centimeters

• 400 cubic centimeters

How is the base area of a square pyramid calculated?

• Length times width

• Length plus width

• Base times height

• Side squared

How is the volume of a pyramid generally calculated?

• Base area times height

• One third of the base area times height

• Base area divided by height

• Height squared times base area