Question

Each swing that Susan builds requires $10 in hardware and $20 in wood. She uses the expression 10 + 20 to represent the total cost of building one swing.



Which expression represents the total cost of building three swings?









A.

10 + (3 • 20)








B.

3 + (10 + 20)








C.

3 • (10 + 20)








D.

3 • 10 + 20

Answer 1

If susan were to build 3 swings she'd spend a total of $90
You remember P.E.M.D.A.S right, the parentheses go first, so you'd be adding 10 and 20, then you'd multiply that by 3.

Answer 2

If you were to choose A 10 + (3 • 20) you'd get 10 + 60 which would give you 70 not 90. B gives you 33, D gives you 50. The only one that would give you 90 is C.

Answer 3

c r

Answer 4

c r?

Answer 5

sorry computer is acting up... C right

Answer 6

It's alright and yeah, C is right.

Answer 7

thanks and I got 1 more but it has too many letters to fit so I'll have to write the rest in the box

Answer 8

Okay.