Question

-2x2 + x - 3 by x -1 it is for 100 points pls answer
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Answer 1

Answer:

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Step-by-step explanation:

x+y=24 or x=24-y

4x+5y=100

Now replace x with (24-y) i the second equation & solve for y.

4(24-y)+5y=100

96-4y+5y=100

y=100-96

y=4 questions worth 5 points each.

24-4=20 questions worth 4 points each.

Proof:

4*20+5*4=100

80+20=100

100=100