Question 979358
First question asked for how much money NOT what percent, so your answer should be in value/number NOT percent.

Bonds = 50% = 5000
Stocks = 25% = 2500
Mutual Funds = 15% = 1500
CD = 10% = 1000

After that 10% of the amount that is invested in BONDS is reinvested in CD's.

So take 10% out of 5000 which equals 500.

Now add 500 to 1000(the original amount invested in CD) which equals 1500.

So how much money is invested in CD's now?  

Answer: 1500 is invested in CD's.

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For the second question,

Add all numbers of students.

8 + 12 + 5 + 4 + 3 = 32
There are 32 students altogether.

Then, find the number of students that made an A but failed the last test and now have a B.

1/2 x 8 = 4

Now add 4 to 12(the original number of students who got a B) which equals 16.


Finally, use a proportion to find the percentage of the class now that has a B average in math class.

Number of students who have a B average/Total numbers of students = x/100%

16/32 = x/100%
16(100) = 32x   cross multiply
1600 = 32x
1600/32 = 32x/32  divide both sides by 32
50 = x

So what percent of the class now has a B average in math class?

The answer is 50%.