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

Question

elixir [45]

3 years ago

9

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:

abruzzese [7] · Answer 1 · 2022-05-08T09:04:50+03:00

abruzzese [7]3 years ago

4 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!