Question

find x in the following. 1) :7=120 :420 2) 8 : x = 80 : 50

Answer 1

❤:7=120:420
❤8:x=80:50
x=80:50:8

Answer 2

Answer:

Step-by-step explanation:

1:

x : 7 = 120 : 420

x/7 = 120/420

x/7 = 2/7 (denominator is cancelled)

x = 2

2:

8 : x = 80 : 50

8/x = 80/50

8/x = 8/5

1/x = 1/5 (numerator is cancelled)

x = 5 (cross-multiplication)