Amelia had 22 sea shells. Then, she collected 10 more sea shells. After that, she gave S sea shells to her little sister. Which of the following shows how many sea shells she has currently?
A.
22 + S - 10
B.
22 - 10 - S
C.
22 + 10 - S
D.
22 + S + 10
D. 22 + S + 10
wrong try again
C. 22 + 10 - S
Sara and three roommates equally share the rent on their apartment. The rent is r dollars. Which expression shows Sara's share of the rent?
A.
r × 4
B.
r + 4
C.
r - 4
D.
r ÷ 4
D. r ÷ 4
Kim read b books last month. This month she read 26 books. Which expression shows the total number of books Kim has read in the past two months?
A.
b × 26
B.
b ÷ 26
C.
b + 26
D.
b - 26
C. b + 26
A teacher prints off review packets for her classes. Each 6th-grade packet is 10 pages long and each 7th-grade packet is 12 pages long.
Which expression represents the total number of pages printed if there are p 6th-grade packets printed and r 7th-grade packets printed?
A.
(p + 10 x (r + 12)
B.
10p x 12r
C.
10p + 12r
D.
12p + 10r
B. 10p x 12r
try again
A. (p x 10) + (r x 12)
A fundraiser was set up to sell cookies in packages of 12. On the morning of the last day of the fundraiser, it was estimated that 204 cookies were sold. By the afternoon, it was confirmed that p less packages were sold than estimated.
Create an expression that will represent the number of packages of cookies that were sold for the fundraiser.
Let x be the number of packages of cookies sold.
The relationship between the cookies sold and the packages sold is given by:
12 (number of cookies in a package) x = 204
x = 204 / 12
x = 17
p less packages were sold, so the number of packages sold would be 17 - p.
Therefore, the expression that represents the number of packages of cookies sold is:
17 - p.
Ryan's dog weighs 55 pounds, and Mark's dog weighs p pounds. Which expression shows their combined weight?
A.
55 × p
B.
55 - p
C.
55 ÷ p
D.
55 + p
D. 55 + p
Sarah climbed 4,500 feet of the way up Pikes Peak and then stopped to rest. After she stops, she continues to climb at a rate of 80 feet per hour for h hours. Which expression indicates her elevation, in feet, h hours after she stops?
A.
4,500 - 80 × h
B.
4,500 + 80 × h
C.
4,500 ÷ 80 × h
D.
(4,500 + 80) ÷ h