Question

Can somebody please tell me the formula I need to do? I can do the rest.

Answer 1

Hello Raaraa! We need to come up with two equations and then solve it to find the answer

Answer 2

Okay, I'm with you. Which goes where?

Answer 3

Let's call

the number of hours she babysits as 'x'
and
the number of hours she teaches music lessons as 'y'

Answer 4

Still following allowing so far?

Answer 5

Yes

Answer 6

(some students get confused with the whole 'x' and 'y' so I wanted to make sure)

Answer 7

Its fine, then what?

Answer 8

So your question says that she works a total of 26 hours

she worked some of those hours babysitting and the rest of those hours teaching music

Answer 9

remember how we said `x` was for hours babysitting and `y` was for hours giving music lessons?

that means we can come up with our first equation

x + y = 26

because the total number of hours is 26 and x hours was babysitting and y hours was giving music lessons

Answer 10

Ohhhh, okay. I follow.

Answer 11

So that's our first equation!

Now, how much does she earn babysitting?
And how much does she earn by giving music lessons?

(it's in your question stem so look back at that)

Answer 12

220 total.

Answer 13

yes, she earns 220 total

so for our next equation we're going to have

something something = 220

but how much does she earn per hour by babysitting
and how much does she earn per hour by giving music lessons?

Answer 14

I'm guessing it would be
5x + 11y = 220?

Answer 15

For the second equation.

Answer 16

You got it!!

It's because x was the total hours worked as a babysitter
if she earns 5 dollars per hour

then the total amount of money she makes from babysitting would be 5 * x

and similarly for the music lessons, it would be 11y

and the combined money she earned from babysitting and music lessons was 220

Answer 17

So now you have your two equations

x + y = 26
5x + 11y = 220

Answer 18

I know! I believe that I can do the rest.

Thank you so much for your help.

Answer 19

That's awesome! Let me know if you want me to check your answer. I'd be more than happy to :)

Answer 20

Yep!