Proportionality Unit Review - Find It, Fix It

Front

What is proportionality?

Back

Proportionality refers to the relationship between two quantities where their ratio remains constant. If one quantity increases, the other increases in a consistent manner.

Front

How do you calculate the percent change?

Back

Percent change is calculated using the formula: ((New Value - Old Value) / Old Value) x 100.

Front

What does it mean if a statement is incorrect in a proportionality context?

Back

An incorrect statement in proportionality means that the relationship or calculation does not hold true based on the given data or ratios.

Front

If Charlie can type 210 words in 5 minutes, how many words can he type in 1 minute?

Back

Charlie can type 42 words in 1 minute.

Front

If Roxanne can type 3,120 words in 1 hour, how many words can she type in 1 minute?

Back

Roxanne can type 52 words in 1 minute.

Front

What is a percent bar?

Back

A percent bar is a visual representation that shows the percentage of a whole, often used to illustrate parts of a total in a clear manner.

Front

How do you find 30% of a number?

Back

To find 30% of a number, multiply the number by 0.30.

Front

What is the formula for calculating the percent decrease?

Back

Percent decrease is calculated using the formula: ((Old Value - New Value) / Old Value) x 100.

Front

If a tree is originally priced at $100 and is on sale for 60% off, what is the sale price?

Back

The sale price is $40.

Front

If employees get an additional 10% off the sale price of a tree that costs $40, what is the final price for employees?

Back

The final price for employees is $36.