Identify Expressions and Equations

4 divided by the sum of a number and 12

• 4 / n + 12

• 4 / ( n+ 12)

• 4 / 12n

• (4 / n) + 12

Which choice models this situation?

Last week, James worked 35 hours in 5 days on the farm. He worked the same number of hours each day. How many hours did he work each day?

• h - 5 = 35

• h + 5 = 35

• 5h = 35

• h/5 = 35

Hadlee needed new pencils for school today. She took 6 pencils from a new box of pencils. If there are 18 pencils left in the box, how many pencils were in the brand new box?

• p - 6 = 18

• p + 6 = 18

• 6p = 18

• p/6 = 18

2y = 18

• y = 36

• y = 9

• y = 16

• y = 20

Solve the following equation

1/2 n = 10

• n = 10

• n = 20

• n = 5

• n = 12

Solve the following equation

s + 18 = 24

• s = 42

• s = 18

• s = 6

• s = 24

Evalutate:

6a - 3d

when a = 1, d = 2

• 3

• 12

• 1

• 0

Evaluate:

2(a - 5) + 2

when a = 15

• 22

• 27

• 42

• 12

A website charges $0.99 to download a game and $12.49 membership fee. Write an expression that gives the total cost in dollars to download "g" games.

• 12.49g + 0.99

• 0.99 + 12.49

• 0.99g + 12.49

• g + 12.49 + 0.99

Nancy can type 50 words per minute. Look at the table below, which equation matches the data?

• m = 50 + w

• w = 50m

• w = 50 + m

• m = 50 - w