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seropon [69]
2 years ago
5

Wilma and Betty are playing a number game. Wilma tells Betty, "I'm thinking of a number between 1 and 10. If I take the number a

nd add 4 to it and then multiply that by 3, I get 30." What number is Wilma thinking of?
Mathematics
1 answer:
Ilia_Sergeevich [38]2 years ago
8 0
Just work this problem out backwards. First write out an equation.
(x+4)•3=30

Now solve :

(x+4)•3=30

3x+12=30
-12   -12

3x=18
/3   /3

x=6

Your answer is 6!

Hoped I helped!
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