900=(1/2)*b*10*15
1800=150b
b=12
I hope you can figure out FC with this info.
Let's say that B makes $100.
Then A makes $75.
So, your question then becomes 100 is what percent of 75?
This can be solved by setting up the proportion 100 / 75 = x / 100
75x = 10000
x = 133.3
So, B's income is 33.3% more than A's income.
Its asking how much did they both spent, in total, in order to reach the same amount spent in part A
Answer:
62%
Step-by-step explanation:
10 000 ÷ 100 = 100
620 ÷ 100
= 62%
