Question

Решите уравнения:
7/4= x/2
2,4/5 = 6/y​

Answer 1

7/4=x/2

7*2=4x

4x=14

x=14:4

x=7/2

2.4/5=6/y

2.4*5=0.48

0.48y=6

y=6:0.48

y=12.5