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natta225 [31]
3 years ago
6

PLEASE HELP YOU WILL GET THE BRAINLIEST

Mathematics
1 answer:
k0ka [10]3 years ago
3 0

Answer:

I won't be able to solve the entire question but I will give you the formula and show you how to find the answer

4) 1.65x + 1.36y = 118.17 (i)

x + y = 79. (ii)


From the (i) equation you get

1.65x = 118.17 - 1.36y

x = (118.17 - 1.36y)/1.65 (iii)


Substituting the value of (iii) in (ii)

(118.17-1.36y)/1.65 + y = 79

When you solve it you will get the answer

After that find the value of x and y and multiply them by 1.65 and 1.36 respectively.

Then find their difference and see which class sold more and by how much.


Hope this helps you!


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Step-by-step explanation:

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Hello there!
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