7th Grade Math Semester 1 Review

Front

What is the unit rate of 624 calories in 3 servings?

Back

208 calories per serving.

Front

How do you calculate the average running rate in meters per second?

Back

Divide the total distance by the total time. For example, 400 meters in 54 seconds is approximately 7.4 meters per second.

Front

If 33 is 75% of a number, how do you find that number?

Back

Divide 33 by 0.75 to find the number, which is 44.

Front

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

Back

z = 3.

Front

What is the equivalent expression for -3(2x + 1)?

Back

-6x - 3.

Front

Define unit rate.

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit of another quantity.

Front

What is the formula for finding the average speed?

Back

Average speed = Total distance / Total time.

Front

How do you convert a percentage to a decimal?

Back

Divide the percentage by 100. For example, 75% becomes 0.75.

Front

What does it mean for two expressions to be equivalent?

Back

Two expressions are equivalent if they have the same value for all values of their variables.

Front

What is the process to solve a linear equation?

Back

Isolate the variable on one side of the equation using inverse operations.