Writing Equations

Logan loves candy! He goes to the store and sees that the bulk candy is $0.79 a pound. Logan wants to buy p pounds of candy and needs to know how much money (m) he needs. Which equation would be used to figure out how much money Logan needs?

• m = 0.79 ÷ p

• m = 0.79(p)

• 0.79 = m(p)

• m = 0.79 + p

Tags

CCSS.6.EE.C.9

Norman is going on a road trip. He has to purchase gas so that he can make it to his first destination. Gas is $3.55 a gallon. Norman gets g gallons. Which equation would Norman use to figure out how much money (t) it cost to get the gas?

• t = g(3.55)

• t = g ÷ 3.55

• t = 3.55 ÷ g

• t = g + 3.55

Tags

CCSS.6.EE.C.9

Penny planned a picnic for her whole family. It has been very hot outside, so she needs a lot of lemonade to make sure no one is thirsty. There are 60 ounces in each bottle. Penny purchased b bottles of lemonade. She wants to figure out the total number of ounces (o) of lemonade she has. Which equation should she use?

• b = 60(o)

• 60 = o ÷ b

• 60(b) = o

• 60 = b ÷ o

Tags

CCSS.HSA.CED.A.3

Ethan is playing basketball in a tournament. Each game lasts 24 minutes. Ethan has 5 games to play. Which general equation could he use to help him figure out the total number of minutes that he played? Let t = the total time, g = the number of games, and m = the time per game.

• t = g + m

• t = g(m)

• t = g − m

• t = g ÷ m

Tags

CCSS.6.EE.C.9

The Spencers built a new house. They want to plant trees around their house. They want to plant 8 trees in the front yard and 17 in the backyard. The trees that the Spencer’s want to plant cost $46 each. Could they use the equation t = c(n) where t is the total cost, c is the cost per tree, and n is the number of trees purchased, to figure out the cost to purchase trees for both the front and the back yards?

• No, because the variables represent only two specific numbers that will never change.

• Yes, because the variables represent only two specific numbers that will never change.

• No, because the variables represent a dependent and an independent variable that can be filled in with any number.

• Yes, because the variables represent a dependent and an independent variable that can be filled in with any number.

Tags

CCSS.HSF-BF.A.1A

Liz is a florist. She is putting together b bouquets for a party. Each bouquet is going to have f sunflowers in it. The sunflowers cost $3 each. Which equation can Liz use to figure out the total cost (c) of the sunflowers in the bouquets?

• c = 3(bf)

• c = bf ÷ 3

• c = 3b + f

• c = 3(b + f)

Tags

CCSS.6.EE.C.9

Hen B (b) lays 4 times as many eggs as Hen A (a).

• b = 4 ÷ a

• b = 4 + a

• b = 4a

• b = 4a − 4

Tags

CCSS.6.EE.C.9