Percent Change and Basic Math Problems

Front

What is the constant of proportionality?

Back

The constant of proportionality is a constant ratio between two variables, often expressed as y = kx, where k is the constant.

Front

Solve for a: 16 - 4a > 8

Back

a < 2

Front

Find the measure of the indicated angle: What is the angle if the options are 95, 85, 35, 45?

Back

45

Front

What is the best first step to solve the equation 2x + 6 = 14?

Back

Add 6 to both sides.

Front

Determine the constant of proportionality for the table: y = kx. If k = 15, what is the equation?

Back

y = 15x

Front

What does it mean if a variable is directly proportional to another?

Back

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

Front

If the price of an item increases from $20 to $25, what is the percent change?

Back

Percent change = ((25 - 20) / 20) * 100 = 25%.

Front

What is the formula for calculating percent change?

Back

Percent Change = ((New Value - Old Value) / Old Value) * 100.

Front

If a number is decreased by 30%, what is the remaining percentage of the original number?

Back

70% of the original number remains.

Front

What is the solution to the inequality: 3x + 5 < 14?

Back

x < 3.