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maksim [4K]
2 years ago
11

Your next math test is worth 111 points and contains 32 problems. Each problem is worth either 4 points or 3 points. How many 3

point problems are on the test?
Mathematics
2 answers:
faust18 [17]2 years ago
5 0

Answer:

usatestprep?

Step-by-step explanation:

Dafna11 [192]2 years ago
3 0
We call x the 4 points-worth problems and y the 3 points-worth problems

You know that x+y = 32

4x+3y = 111

You know that the difference from the x and y is 32 so write:

x = 32-y

Substitute at x the value of 32-y

4(32-y)+3y = 111

128-4y +3y = 111

-4y+3y = 111-128

-y = -17

y = 17
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