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meriva
2 years ago
15

A and B share the cost in a ratio of 3:2 . The cost is ?85; how much does A pay?

Mathematics
1 answer:
Katen [24]2 years ago
3 0

Answer:

The amount of money A pays is \$51

Step-by-step explanation:

Let

x-----> amount of money A pays

y-----> amount of money B pays

we know that

x+y=85 ------> equation A

\frac{x}{y}=\frac{3}{2}

so

y=\frac{2}{3}x ------> equation B

substitute equation B in equation A and solve for x

x+(\frac{2}{3}x)=85

\frac{5}{3}x=85

x=85*3/5=\$51

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