7th Grade Interim 1 Review

Front

What is the total cost of a dinner if the meal costs $15.00 and a tip of 21% is added?

Back

Total cost = $15.00 + ($15.00 * 0.21) = $18.15.

Front

What does the point (1, 15) represent in terms of unit rate?

Back

The point (1, 15) means the unit rate is $15 per hour.

Front

How do you calculate simple interest?

Back

Simple Interest = Principal × Rate × Time.

Front

What is the interest earned on a $4,500 savings account at 2.5% over 3 years?

Back

Interest = $4,500 × 0.025 × 3 = $337.50.

Front

How do you calculate the sale price after a discount?

Back

Sale Price = Regular Price - (Regular Price × Discount Rate).

Front

If a jacket costs $62.00 and has a 15% discount, what is the sale price?

Back

Sale Price = $62.00 - ($62.00 × 0.15) = $52.70.

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object with accurate proportions, but at a smaller or larger size.

Front

If a basketball court's scale drawing is 3.2 inches wide and the actual width is 38.4 feet, what is the scale factor?

Back

Scale factor = Actual Width / Drawing Width = 38.4 feet / 3.2 inches.

Front

How do you convert inches to feet?

Back

To convert inches to feet, divide the number of inches by 12.

Front

What is the formula for calculating the total cost including tax and tip?

Back

Total Cost = Meal Cost + Tip + Tax.