A candy distributor needs to mix a 40% fat-content chocolate with a 60% fat-content chocolate to create 200 kilograms of a 43% fat-content chocolate. How many kilograms of each kind of chocolate must they use?

Answer: They must mix

Kilograms of the 40% chocolate and

Kilograms of the 60% chocolate.

You need a 60 percent alcohol solution. On hand, you have a 60 mL of a 30% alcohol mixture. You also have 75% alcohol mixture. How much of the 75% mixture will you need to add to obtain the desired solution?

You will need

mL of the 75% solution

to obtain

mL of the desired 60% solution.

Theresa Morgan, a chemist, has a 15% hydrochloric acid solution and a 50% hydrochloric acid solution. How many liters of each should she mix to get 459.375 liters of a hydrochloric acid solution with a 34% acid concentration?

liters of 15% hydrochloric acid solution .

liters of 50% hydrochloric acid solution .

Joy invests a total of $30,000 in two accounts paying 12% and 8% annual interest, respectively. How much was invested in each account if, after one year, the total interest was $3,180.00.

$was invested at 12% and

$was invested at 8%.

A bank loaned out $18,500, part of it at the rate of 13% annual interest, and the rest at 10% annual interest. The total interest earned for both loans was $2,240.00. How much was loaned at each rate?

$was loaned at 13% and

$was loaned at 10%.

Jolene invests her savings in two bank accounts, one paying 4 percent and the other paying 8 percent simple interest per year. She puts twice as much in the lower-yielding account because it is less risky. Her annual interest is 2000 dollars. How much did she invest at each rate?

Amount invested at 4 percent interest is $

Amount invested at 8 percent interest is $

Keegan just retired, and has $650,000 to invest. A very safe Certificate of Deposit (CD) account pays 1.5%, while a riskier bond fund pays 6% in interest. Keegan figures he needs $16,000 a year in interest to live on. How much should he invest in each account to make enough interest while minimizing his risk?

$at 1.5%

$at 6%

Casey invests $7100 in two different accounts. The first account paid 14 %, the second account paid 7 % in interest. At the end of the first year he had earned $581 in interest. How much was in each account?

$at 14 %

$at 7 %