Interpreting Equations

Which variable is greater in the following equation:

y = 4x

• y

• x

• 4

• They are both equal

If g is the cost of each gummy bear and

b is the cost of a box of 20 gummy bears, which equation represents the cost of a box of gummy bears?

• g = 20b

• g + b = 20

• b = 20g

Answer explanation

cost of a box of gummy bears 'b' = (cost of one gummy bear 'g') x 20

Tags

CCSS.6.EE.C.9

Let 'j' be the number of jelly beans

Let 'b' be the number of bottles

There are 100 jelly beans in each bottle

Find an equation linking 'j' and 'b'

• j = 100b

• b = 100j

• b = j + 100

• j = 100 + b

Tags

CCSS.6.EE.C.9

I bought twice as many gums 'g' than lollipops 'l'

• g = 2l

• l = 2g

• g + l = 2

• g - 2 = l

Tags

CCSS.6.EE.C.9

Altogether I bought 5 pencils 'p' and 3 erasers 'e'

• p - e = 5

• e + 5 = p

• p + 5 = e

• p + e = 5

Tags

CCSS.6.EE.C.9

'g' is the number of grapefruits

'p' is the number of pears

p = 2g

• There are twice as much pears to grapefruits

• There are half as much pears to grapefruits

• There are twice as much grapefruits to pears

• there are a total of 2 grapefruits and pears

Tags

CCSS.6.EE.C.9

't' is the number of tables

'w' is the number of whiteboards

w = 2t

Which is greater?

• Whiteboards

• tables

• 2

• They are the same amount

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

There are 2 more buttons on the green shirt 'b' than the blue shirt 'B'

• b + 2 = B

• 2b = B

• B + 2 = b

• 2B = b

Tags

CCSS.6.EE.C.9

Peter 'P' is 4 years younger than Jay 'J'

• P = J - 4

• J = P - 4

• J = P/4

• P = J/4

Tags

CCSS.6.EE.C.9

'p' is the number of pictures

'f' is the number of frames

f = 4 + p

Which is less

• p

• f

• they are equal

• 4

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9