Variables and Expressions

Stephanie sees 37 cans of pet food on a shelf. There are 16 cans of cat food. The rest is dog food. How many cans of dog food, d, are on the shelf? 16 + d = 37

• d = 9

• d = 21

• d = 53

• d = 19

Which of the following could NOT be a correct answer to the nonequivalent expression 7 + p < 24?

• 16

• 14

• 15

• 17

Solve this equivalent expression:

5 x 8 = t x 10

• t = 40

• t = 4

• t = 6

• t = 5

Solve this equivalent expression:

k + 9 = 17

• k = 9

• k = 7

• k = 8

• k = 26

Solve this equivalent expression:

4 x b = 32

• b = 8

• b = 6

• b = 5

• b = 7

Solve this equivalent expression:

d x 9 = 54

• d = 5

• d = 6

• d = 7

• d = 8

Solve this equivalent expression:

24 + w = 45

• w = 18

• w = 20

• w = 21

• w = 19

Which variable could be the correct answer to the following nonequivalent expression?

n + 11 > 18

• n = 7

• n = 5

• n = 8

• n = 6

Which variable could be the correct answer to the following nonequivalent expression?

4 x 7 < 6 x f

• f = 2

• f = 3

• f = 4

• f = 5

Sven buys 72 greeting cards. They come in packages of 12. Solve the equation c x 12 = 72 to find out how many packages of cards he buys.

• c = 6

• c = 5

• c = 8

• c = 7