Week 15~Monday

Front

What is the cost of one pound of bananas if three pounds cost $1.95?

Back

One pound of bananas costs $0.65.

Front

What is a unit rate?

Back

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

Front

If y is proportional to x, what does that mean?

Back

It means that as x increases or decreases, y increases or decreases at a constant rate.

Front

What is the unit rate if y = 4x?

Back

The unit rate is 4.

Front

How do you solve the inequality 7 - 8x > -41?

Back

First, subtract 7 from both sides: -8x > -48. Then, divide by -8 (remember to flip the inequality): x < 6.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or not equal to the other.

Front

What does the graph of x > 2 look like?

Back

It is a number line with an open circle at 2 and a line extending to the right.

Front

What is the solution to the inequality 7 - 8x > -41?

Back

The solution is x < 6.

Front

What number can be substituted for k in the expression 4 - 4(-2x + 9) - 7x to make it equivalent to x + k?

Back

k = -32.

Front

What does it mean for two quantities to be proportional?

Back

It means that the ratio between the two quantities remains constant.