Answer:
x=12
Step-by-step explanation:
because they are proportional, the side should be 100 so you just solve from that equation for 100.
Answer:
5, and 20
Step-by-step explanation:
5+20=25
reciprocal of 5 is 1/5 and reciprocal of 20 is 1/20 so 1/5=4/20 and 4/20 + 1/20 = 5/20. 5/20 = 1/4