The answer will be start fraction pi over 2 end fraction
Answer:
x=0
Step-by-step explanation:
10(x-2)=-20
10x-20=-20
add 20 on both sides.
10x=0
10 times 0 =0
x=0
Answer:
The Federal taxes of total budget is 30%
C is correct.
Step-by-step explanation:
The chart below summarizes Ralph's annual expenses for the upcoming year.
We need to find the percentage for federal taxes.
First we find total annual budget from chart. We will add all the taxes.
Total annual budget = Federal taxes + State tax + Housing + Food + Medical +
Transportation + Recreation
Total Annual Budget = 18380 + 3448 + 15000 + 4880 + 6652 + 4332 + 3500 +
3260 + 1750
= 61202
Total Annual Budget = $61,202
Federal Taxes = $18,380
Now, we will find the percentage of federal taxes.
% of federal taxes 

Hence, The Federal taxes of total budget is 30%
Assuming simple interest (i.e. no compounding within first year), then
At 6%, interest = 10000*0.06=$600
At 9% interest = 10000*0.09 = $900
Two ways to find the ratio
method A. let x=proportion at 6%
then
600x+900(1-x)=684
Expand and solve
300x=900-684=216
x=216/300=0.72 or 72%
So 10000*0.72=7200 were invested at 6%
10000-7200=2800 were invested at 9%
method B: by proportions
Ratio of investments at 6% and 9%
= 900-684 : 684-600
=216 : 84
= 18 : 7
Amount invested at 6% = 18/(18+7) * 10000 = 0.72*10000 = 7200
Amount invested at 8% = 7/(18+7)*10000=0.28*10000=2800