Question

Which equation represents this situation?

Answer 1

Nalia worked 3.5 hours more than Lisa. Together, they worked a total of 18 hours. Lisa worked h hours.

Answer 2

A. h+3.5=18
B. h+7=18
C. h+(h-3.5)= 18
D. h+(h+3.5)=18

Answer 3

@iambatman

Answer 4

Please help

Answer 5

So if Lisa worked h hours, we would say Lisa = h correct

Answer 6

Yes

Answer 7

And we know in total the work hour is 18, so we have = 18 correct?

Answer 8

Yes

Answer 9

Now notice it says Nalia worked 3.5 hours `more` than Lisa so what can we represent that with?

Answer 10

It means we are using addition

Answer 11

Exactly!

Answer 12

So what can we say it is?

Answer 13

Either A or D I think

Answer 14

Good choices, so we have Natalia worked 3.5 more hours than lisa which we can represent as L = h+3.5

Answer 15

Ok

Answer 16

So our answer is?

Answer 17

A?

Answer 18

No look at what I said, that should be N = h+3.5, so we have Lisa = h, total = 18

Our equation will be h+N=18 if we substitute N for h+3.5 we have h+(h+3.5)=18

Answer 19

So it was D?

Answer 20

Yes

Answer 21

Ok thank you