SAT Test review

Front

For all real numbers x and y, simplify: 4x(x) - 3xy(2x) = ?

Back

2x²(2 - 3y)

Front

Simplify: (1/3)(21m + 27)

Back

7m + 9

Front

Which of the following statements must be true for all values of x, y, and z? I. (x+y) + z = (z+y) + x II. (x - y) - z = (z - y) - x III. (x÷y) ÷ z = (z÷y) ÷ x

Back

I only

Front

If a recipe requires 3 eggs for 6 servings, how many servings can be made with 5 eggs if all ingredients are increased proportionally?

Back

10

Front

If y varies inversely as the square of x, what happens to y when x is multiplied by 4?

Back

y will be divided by 16

Front

Define inverse variation.

Back

Inverse variation occurs when one variable increases while the other decreases, such that their product is constant.

Front

What is the formula for inverse variation?

Back

y = k/x², where k is a constant.

Front

State the commutative property of addition.

Back

The commutative property states that a + b = b + a for any numbers a and b.

Front

State the associative property of addition.

Back

The associative property states that (a + b) + c = a + (b + c) for any numbers a, b, and c.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.