7th Grade Math Semester 1 Review

Front

What is the formula to calculate the percentage of correct answers?

Back

Percentage = (Number of Correct Answers / Total Questions) × 100

Front

If Madi answered 9 out of 12 questions correctly, what percent did she score?

Back

75%

Front

What is simple interest?

Back

Simple interest is calculated using the formula: Interest = Principal × Rate × Time.

Front

If Mr. Thompson invests $7,500 at 2.75% for 10 years, how much interest will he earn?

Back

$2,062.50

Front

What is the total amount in Mr. Thompson's account after 10 years?

Back

$9,562.50

Front

How do you find what percent one number is of another?

Back

Percent = (Part / Whole) × 100

Front

What is 32 as a percentage of 20?

Back

160%

Front

What is a variable in algebra?

Back

A symbol (like x or z) that represents an unknown value.

Front

Solve for z: 6z + 3 - 4z = 9

Back

z = 3

Front

What is a random sample?

Back

A subset of individuals chosen from a larger population, where each individual has an equal chance of being selected.