ACT Skills

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is calculated using the formula: Area = length × width.

Front

What is the formula for the area of a circle?

Back

The area of a circle is calculated using the formula: Area = π × radius².

Front

What is the definition of a system of equations?

Back

A system of equations is a set of two or more equations with the same variables.

Front

What does it mean to solve a system of equations using substitution?

Back

To solve a system of equations using substitution, you solve one equation for one variable and then substitute that expression into the other equation.

Front

How do you calculate a percentage discount?

Back

To calculate a percentage discount, multiply the original price by the discount percentage (as a decimal) and subtract that amount from the original price.

Front

What is the formula for calculating the tip amount?

Back

Tip Amount = Total Bill × Tip Percentage.

Front

How do you find the total cost after adding a tip?

Back

Total Cost = Original Bill + Tip Amount.

Front

What is the definition of a linear equation?

Back

A linear equation is an equation that makes a straight line when graphed, typically in the form y = mx + b.

Front

What is the meaning of 'splitting the cost evenly'?

Back

Splitting the cost evenly means dividing the total cost by the number of people sharing the expense.

Front

What is the formula for the area of a triangle?

Back

The area of a triangle is calculated using the formula: Area = 1/2 × base × height.