Using Equations to solve problems

Maddie is 2 years older than Vince. Which equation will help you find Maddie's (m) age if you know Vince's (v) age?

• m=v+2

• m=v-2

• v=m-2

If Maddie (m) is 34 years old, how old is Vince (v)?

• v = 68

• v = 32

• v = 36

• v = 64

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Find the width (w) of a rectangular room with a length (l) of 60 feet and an area of 2400 square feet.

• w = 40

• w = 80

• w = 400

• w = 800

Maddie has read 79 pages of her book. Which equation shows how many more pages she has to read?

[t = total number of pages;

r = how many more pages she has to read]

• t + 79 = r

• t - 79 = r

• r - 79 = t

If she has 184 pages left to read, how many total pages are in Maddie's book?

• t = 341

• t = 284

• t = 263

• t = 105

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CCSS.6.EE.B.6

CCSS.6.EE.B.7

Each case (c) of apples Jack buys weighs 24 pounds. Which equation tells the number of pounds (p) in any number of cases (c)?

• p = 24c

• 24p = c

• c - 24 = p

If Jake wants to buy 480 pounds (p) of apples, how many cases (c) does he need to order?

• c = 20

• c = 24

• c = 96

• c = 2

Maddie is 2 years older than Vince. Which equation will help you find Maddie's (m) age if you know Vince's (v) age?

• m=v+2

• m=v-2

• v=m-2