Semester CBA Extra Review 7th Grade

Front

What is scientific notation?

Back

A way of expressing very large or very small numbers using powers of ten. For example, 0.00000033 can be written as 3.3 x 10⁻⁷.

Front

Convert 0.00000033 mm to scientific notation.

Back

3.3 x 10⁻⁷ mm.

Front

How do you solve for a variable in an equation?

Back

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

Front

Solve for d: 1.5d + 3.25 = 1 + 2.25d.

Back

d = 3.

Front

What is a proportion?

Back

A statement that two ratios are equal.

Front

If a 12-ounce shampoo bottle lasts 16 weeks, how long will an 18-ounce bottle last?

Back

24 weeks.

Front

What is the formula for solving linear equations?

Back

Ax + B = C, where A, B, and C are constants.

Front

Solve for m: -650 - 10m = 60m - 370.

Back

m = -1.

Front

What does it mean for a graph to represent a situation accurately?

Back

The graph must reflect the correct ratio or relationship between the variables.

Front

True or False: The total number of washcloths, y, in x packages can be represented by a graph showing a ratio of 1 to 8.

Back

True, because the ratio is 1 to 8.