STAAR Review Math 6.5B

Front

What is the total number of hours in a day?

Back

24 hours.

Front

If a security deposit is 40% of one month's rent and the deposit is $200, how do you calculate the rent?

Back

Divide the deposit by 0.40: Rent = $200 / 0.40 = $500.

Front

How do you calculate the amount Pham still needs to save for headphones costing $200 if she has saved 45%?

Back

Calculate 45% of $200: $200 * 0.45 = $90. Then subtract from the total cost: $200 - $90 = $110.

Front

What is the formula to find the weight of an object on Jupiter if it weighs 30.5 pounds on Earth?

Back

Weight on Jupiter = Weight on Earth * 2.4 (or 240%). For 30.5 pounds: 30.5 * 2.4 = 73.2 pounds.

Front

If 30% of the choir participated in a contest and that number is 36, how do you find the total number of students in the choir?

Back

Let x be the total number of students. Set up the equation: 0.30x = 36. Solve for x: x = 36 / 0.30 = 120.

Front

What is the definition of percentage?

Back

A percentage is a fraction expressed as a part of 100.

Front

How do you convert a percentage to a decimal?

Back

Divide the percentage by 100. For example, 45% = 0.45.

Front

What is the relationship between fractions and percentages?

Back

A percentage is a fraction with a denominator of 100.

Front

How do you find 40% of a number?

Back

Multiply the number by 0.40.

Front

What is the formula for calculating the total cost if you know the percentage saved?

Back

Total Cost = Amount Saved / Percentage Saved.