Unit 4 Test - Ready Math

Front

What is the expression for the total number of short and tall shelves in each row if short shelves hold 'a' items and tall shelves hold 'b' items, and there are 3 identical rows?

Back

3(7a + 3b)

Front

If the sum of twice a number 'n' and 13 is 55, what is the equation to find 'n'?

Back

2n + 13 = 55

Front

What is the equivalent expression for -3(4k - 5) - 2k?

Back

-14k + 15

Front

If Taylor babysits four times as many hours on the weekend as during the week and earns $10.50 per hour, how many hours must she work during the week to earn at least $315?

Back

No, she needs to work more than 4 hours.

Front

In the equation 5(x - 4) = 25, what is the value of (x - 4)?

Back

(x - 4) = 5

Front

What is the definition of a variable in mathematics?

Back

A symbol used to represent an unknown value.

Front

What does it mean to simplify an expression?

Back

To reduce it to its simplest form by combining like terms.

Front

What is the distributive property in mathematics?

Back

a(b + c) = ab + ac

Front

How do you solve for 'n' in the equation 2n + 13 = 55?

Back

Subtract 13 from both sides and then divide by 2.

Front

What is the definition of an equation?

Back

A mathematical statement that asserts the equality of two expressions.