Foundations of PreAlgebra Fall Exam Review MORE Practice!

Front

What does it mean for two quantities to be proportional?

Back

Two quantities are proportional if they maintain a constant ratio to each other.

Front

If the original perimeter of a rectangle is 30cm, what is the new perimeter if enlarged by a scale factor of 4?

Back

120 cm

Front

What is the difference between a radius and a diameter of a circle?

Back

A radius is half the length of a diameter; the diameter is the longest distance across the circle.

Front

How can you determine if a table of values is proportional?

Back

A table is proportional if the ratio of the y-values to the x-values is constant.

Front

What is 65% of 520?

Back

338 students ride the bus.

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity.

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2(length + width) or P = 2L + 2W.

Front

What does it mean if a relationship is not proportional?

Back

It means that the ratio between the two quantities changes.

Front

How do you calculate the new perimeter after scaling?

Back

Multiply the original perimeter by the scale factor.

Front

What is the relationship between the radius and diameter in a circle?

Back

The diameter is twice the length of the radius.