help

Guest:

Joshua paid $36 for 4 buns and 5 cakes. each cake cost 4 times as much as a bun how much did he pay for each bun?

4B+5C=36
C=4B

Replace the C in the first equation with 4B and then solve.

i posted that question when i was not logged in melody or somebody please help me out

Hayden:

i posted that question when i was not logged in melody or somebody please help me out

I thought i had. Don't you understand my answer?

Hi Hayden,
So I'm obviously not Melody, but I'll try to explain it:

Melody wrote:
4B+5C=36
C=4B

Replace the C in the first equation with 4B and then solve

So basically, she's explaining that the reason the C (cakes) can be replaced by 4B (buns) is b/c the problem states that each cake cost 4 times as much as a bun.
If you replace the C with 4B, you would get this equation:
4B + 5(4B) = 36
Multiply it out:
4B + 20B = 36
Add it:
24B = 36
Now divide both sides by 24 to get the price for one bun:)

thank you very much my exams are coming for year 6 a very big exam so i had a practice paper
im 11 turning 12 and i am a girl

You're very welcome, Hayden. Good luck on your exams!

Hayden:

thank you very much my exams are coming for year 6 a very big exam so i had a practice paper
im 11 turning 12 and i am a girl

You are very welcome Hayden. Best of luck for you big exam.