how many liters of 70%alcohol solution must be added to 50 liters of a 40% alcohol solution to produce a 50% alcohol[..]

how much water must be added to 20 ounces of a 15% solution of argyrol to reduce it to a solution that is 10% argyrol

how many pounds of coffee worth $1.44 a pound should be mixed with 20 pounds worth $1.80 a pound to produce a[..]

Antonio has a balance of $ 5714.55 on a credit card with an annual pertentage rate (APR) of 21.4% He decides not to[..]

Antonio has a balance of $5714.55 on a credit card with an annual percentage rate (APR) of 21.4% He decides not to[..]

A car travels 623km. in 10 days. At this rate, how far would it travel in 20 days?

Find the length of time for each loan. $7850 at 6.5%; simple interest: $510.25

university theater sold 506 tickets for a play. tickets cost $21 per adult and $12 per senior citizen. if the total[..]

Find the sum of the areas of the two rectangles. Write your answer in factored form. Rectangle 1 has a length of[..]

According to one model, an animal's heart rate varies according to its weight. The formula N(w)= 885w raised to[..]