Question

Seventy-eight is divided into two parts such
the second part are in the ratio 15:14. Then
the first part is
that five times the first part and four times​

Answer 1

Answer:

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Step-by-step explanation:

q 1: x + y = 78

Eq2: 5x/4y = 15/14

In this case x is the “first part.”

Solve one of ht equations for one of the variables, then substitute in to the other

I solved Eq2 for y

Cross multiply

60y = 70x

y = (70/60)x

Substitute back into Eq1

x + (70/60)x = 78

The x terms can be added

(130/60)x = 78

Multiply both sides by (60/130)

x = 36