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umka2103 [35]
3 years ago
10

Marcia, Jan, and Sydney are sisters Jan is twice as old as Sydney. Marcia is two years older than Jan. Altogether the ages are u

p to 37. How old is each sister?
Mathematics
1 answer:
Mrrafil [7]3 years ago
8 0

Answer:

Step-by-step explanation:

m + j + s = 37

j = 2s......s = j/2 or 1/2j

m = j + 2

(j + 2) + j + (1/2j) = 37

2j + 1/2j = 37 - 2

2j + 1/2j = 35....multiply everything by 2 to get rid of the fraction

4j + j = 70

5j = 70

j = 70/5

j = 14 < ==== Jan is 14

m = j + 2

m = 14 + 2

m = 16 <==== marcia is 16

s = 1/2j

s = 1/2(14)

s = 14/2

s = 7 <==== sydney is 7

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