writing equations from word problems

If chocolate chip cookies cost $3.00 per cookie plus $2 for boxing them up in a decorated box, what would the expression be?

• 3 + 2x

• 3x + 2

• 3x + 2x

• 5x

Tags

CCSS.HSA-SSE.A.1A

What could this represent? 7x + 2 = 30

• Buying pet turtles for $7 each plus two cans of turtle food cost $30.

• Seven bags of candy plus 2 extra snickers bars equals 30 dollars.

• Two yoyos plus seven frisbees is thirty cents.

• Buying seven calculators plus $2 per bundle of pencils is $30.

Six decreased by twice a number.

• 2x - 6

• 6 < 2x

• 6 - x

• 6 - 2x

Tags

CCSS.6.EE.A.2A

Kelly saves $5 every week. Which equation represents the amount of money,  $m$  Kelly will save, in  $w$ , weeks?

•  $m=\frac{5}{w}$  

•  $m=5+w$  

•  $m=5\cdot w$  

•  $m=5-w$  

Tags

CCSS.6.EE.C.9

Jasen has a coupon for $10 OFF a video game. Which equation represents the relationship between the original price,  $p$ , and the new price,  $N$ , of the video game?

•  $N=10p$  

•  $N=p+10$  

•  $p=N-10$  

•  $N=p-10$  

Tags

CCSS.6.EE.C.9

A hotel has a certain number of rooms,  $r$  . Each room has 2 chairs. Which equation represents the total number of chairs,  $c$ , in all of the rooms at the hotel?

•  $c=2\cdot r$  

•  $c=\frac{2}{r}$  

•  $c=2-r$  

•  $c=2+r$  

Tags

CCSS.6.EE.C.9

Mrs. Fetes has 130 pieces of jolly-ranchers she wants to give out to students who stay after school for extra help. Which equation represents the relationship between the total pieces of candy each student gets,  $p$ , to the number of students who stay after school,  $s$ ?

•  $p=\frac{130}{s}$  

•  $p=130\cdot s$  

•  $p=130+s$  

•  $s=\frac{130}{p}$  

Tags

CCSS.6.EE.C.9

Thomas got a speeding ticket. The officer said he had to pay $10 for each mile(m) per hour he was going over the speed limit plus $115 in court cost. Which equation models the total cost of Thomas' fine?

• c = 125m

• c = 10m + 115

• c = 115m + 10

• c = 10m - 115

Tags

CCSS.HSF-BF.A.1A

Which choice models this situation?

Last week, Tina worked 35 hours in 5 days. She worked the same number of hours each day. How many hours did she work each day?

• h - 5 = 35

• h + 5 = 35

• 5h = 35

• h/5 = 35

Tags

CCSS.HSA.CED.A.3

5 friends went out to eat. The bill was split evenly among the friends. They calculated that each had to pay $18.50. Which equation represents the situation using b for the total bill.

• 18.5 - 5 = b

• 
  

  $\frac{18.5}{b}=\ 5$
  

• $\frac{5}{b}=18.5$

• $\frac{b}{5}=18.5$

Tags

CCSS.HSA.CED.A.3