7th Grade Math: 1st Semester Review

Front

What does it mean for a table to be proportional?

Back

A table is proportional if the ratio of the values in one column to the values in another column is constant.

Front

Write an inequality to represent Jo's situation of collecting signatures.

Back

Front

How do you calculate a percentage discount on an item?

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

If an item costs $85 and is 40% off, how much do you pay?

Back

You pay $51. Calculation: $85 - (0.40 * $85) = $51.

Front

What is the new position of a submarine that descends 160 meters from -240 meters and then ascends 390 meters?

Back

The new position is -10 meters. Calculation: -240 - 160 + 390 = -10.

Front

What is the sum of x and 2 expressed in words?

Back

The sum of x and 2.

Front

Which phrase does NOT represent x + 2?

Back

The product of x and 2.

Front

Define a proportional relationship in mathematics.

Back

A proportional relationship is one where two quantities maintain a constant ratio.

Front

What is the formula for finding the total cost after a discount?

Back

Total Cost = Original Price - (Original Price * Discount Rate).

Front

How do you determine if a relationship is proportional using a table?

Back

Check if the ratios of corresponding values are equal.