All really need to do is pick one number. so, we will go with 6 and 87.
6 times 12 is 72 then you subtract that from $87.
That would be 15
To double check, you can use another one. 9 and 123.
9 times 12 is 108. subtract that from 123 and you get 15.
Your answer is B) $15
Hope I helped :)
Answer:
B = ±X
Step-by-step explanation:
A^2 + B^2 = A^2 + X^2
Subtract A^2 from each side
A^2-A^2 + B^2 = A^2-A^2 + X^2
B^2 = X^2
Take the square root of each side
sqrt(B^2) = ±sqrt(X^2)
B = ±X
Answer:
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Step-by-step explanation:
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For 15 you divide 6 by 12 which is two so she takes 2 quizzezs a week so 2 x 3 is 6 so the other three weeks she took 6 quizzes add 12 and 6 and you get 18 :)