Part 1 Algebra 1 Final Exam 1st Sem 2024

Front

What is the formula to calculate a percentage of a number?

Back

To calculate a percentage of a number, use the formula: (Percentage / 100) * Number.

Front

What is 20% of 75?

Back

15

Front

How do you solve the equation x + 13 = 25?

Back

Subtract 13 from both sides: x = 25 - 13, so x = 12.

Front

What does the phrase 'X is at least 7' mean in terms of inequality?

Back

It means X >= 7.

Front

What is the perimeter formula for a rectangle?

Back

The perimeter (p) of a rectangle is given by the formula: p = 2l + 2w, where l is the length and w is the width.

Front

How do you solve for w in the equation p = 2l + 2w?

Back

Rearranging gives w = (p - 2l) / 2.

Front

Back

Front

Back

Multiply both sides by 3: x = 15.

Front

What is the definition of a variable in algebra?

Back

A variable is a symbol (often a letter) that represents an unknown value.

Front

What is the difference between an equation and an inequality?

Back

An equation states that two expressions are equal, while an inequality shows that one expression is greater than or less than another.