Topic 2 Review (3rd)

Front

What is the formula to calculate speed?

Back

Speed = Distance / Time

Front

What is a proportional relationship?

Back

A relationship where two quantities maintain a constant ratio.

Front

Write the equation for total cost y in dollars for x sheets of stickers if each sheet costs $2.45.

Back

y = 2.45x

Front

If 2 pens can write 10 pages, how many pages can 5 pens write?

Back

25 pages

Front

What is the unit rate of 405 rotations in 5 minutes?

Back

81 rotations per minute

Front

How do you find the unit rate?

Back

Divide the total quantity by the total time or number of items.

Front

If a car travels 120 miles in 2 hours, what is its speed in miles per hour?

Back

60 miles per hour

Front

What does it mean if a table represents a proportional relationship?

Back

It means that as one quantity increases, the other quantity increases at a constant rate.

Front

If 3 apples cost $1.50, what is the cost per apple?

Back

$0.50 per apple

Front

How many pens are needed to write 100 pages if 2 pens can write 10 pages?

Back

20 pens