Betty had 40$ in her pocket. She bought 12 identical bags of popcorn. Betty was left with $10 after buying the popcorn. What was
1 answer:
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Answer: x=10
Step-by-step explanation:
=
=
5(x+5)=3(3x-5)
5x+25=9x-15
25=4x-15
4x=40
x=10
Answer:
(C) 18
Step-by-step explanation:
We can create a systems of equations. Assuming is Michelle's age,
is Joan's age, and
is Ryan's age, the equations are:
We can use substitution, since we know the "values" of m and j.
So we know that Joan is 18 years old.
Hope this helped!