Please Help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

postnew [5]2 years ago

4 0

Let Jenny = J

Let Mica = M

J = M + 4

Now you have to represent 5 years ago

J - 5 = 2*(M - 5)

J - 5 = 2M - 10 Substitute J = M + 4 Into this equation

M + 4 - 5 = 2M - 10 Combine terms on the left

M - 1 = 2M - 10 Add 10 to both sides

M - 1 + 10 = 2M Combine one the left

M + 9 = 2M Subtract M from both sides

9 = 2M - M

9 = M Answer Miki

J = M + 4 Substitute Miki's age for M

J = 9 + 4 Answer Jenny

J = 13

Answer:

Jenny = 13

Mika = 9

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