Respuesta :

tman160429

Answer:

x=10/14 or 0.714

Step-by-step explanation:

1. (4/5)*(5/7) = (4/5)x

2. 20/35 = 4x/5

3. Cross multiply:

140x=100

x=100/140=10/14

relisjoseph

Step-by-step explanation:

4/5÷7/5=4/5x

4/5×5/7=4/5x

simplify by 5

4/7=4/5x

cross product

4(5)=7(4x)

20=28x

divide both sides by 28

x=20/28

x=2/2.8

x=0.71