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malfutka [58]
3 years ago
7

[PLEASE HELP! + 15 POINTS] Wendy's sister said she would pay Wendy a quarter for every correct answer but Wendy would have to pa

y a dime for every incorrect answer. If Wendy made $3.80 after 25 problems, how many problems did she get correct?
Mathematics
1 answer:
Ksenya-84 [330]3 years ago
7 0

Answer:

<u><em>She got 18 correct</em></u>

How to do this:

25 x 25 = 6.25 if she got it correct

20 x 25 = 5.00 - 10 - 10 -10 -10 -10 = 4.50

18 x 25 = 4.50 - 10 -10 -10 -10 -10 -10-10 = 3.80


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