emily10898
16.01.2022 •
Mathematics
Can anybody help me with this question?
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Ответ:
x + y = 29
5x + 2y = 100
Step-by-step explanation:
Total problems = 29
x + y = 29
Total marks for 5 point problems = 5*x = 5x
Total marks for 2 point problems = 2*y = 2y
Total marks = 100
5x + 2y = 100