ACT MATH

Front

What is the formula to calculate a percentage reduction?

Back

To calculate a percentage reduction, use the formula: New Value = Original Value × (1 - Reduction Percentage).

Front

If a budget is reduced by 25%, what fraction of the original budget remains?

Back

After a 25% reduction, 75% of the original budget remains, which is 3/4 of the original budget.

Front

How do you calculate 4% of a number?

Back

To calculate 4% of a number, multiply the number by 0.04 (or divide by 25).

Front

What is the significance of the ones digit in a number raised to a power?

Back

The ones digit of a number raised to a power can often be determined by examining the pattern of the ones digits in the powers of that number.

Front

If Sophie will be n years old in 2 years, how do you express her current age?

Back

Sophie’s current age can be expressed as n - 2.

Front

How do you find the age of a person a certain number of years ago?

Back

To find the age of a person a certain number of years ago, subtract that number of years from their current age.

Front

What is the relationship between x and y in the equation x = 3y + 4?

Back

In the equation x = 3y + 4, x is expressed in terms of y, indicating that x increases by 3 for every 1 increase in y, plus an additional 4.

Front

How do you simplify the expression 3x - y if x = 3y + 4?

Back

Substituting x in the expression gives: 3(3y + 4) - y = 9y + 12 - y = 8y + 12.

Front

What is the process for solving application-based math problems?

Back

The process includes understanding the problem, identifying known and unknown variables, setting up equations, and solving for the unknowns.

Front

What is the importance of understanding percentages in budgeting?

Back

Understanding percentages is crucial in budgeting as it helps in calculating reductions, increases, and overall financial planning.