Problema Solution
A store is going to make a trail mixture of peanuts and chocolate candies. They want the mixture to sell for $3.20 per pound. Peanuts sell for $4.50 per pound and they are going to use 20 pounds of peanuts. If chocolate candies sell for $2.25 a pound how much of the chocolate candies should they use (round to the nearest pound)?
Answer provided by our tutors
let
x = the weight of the chocolate candies used
the value of 20 pounds of peanuts + the value for x pounds of chocolate candies = the value of the mixture
4.50*20 + 2.25*x = (20 + x)*3.20
by solving this equations we find
x = 27.37 = 27 pounds (rounded to the nearest pound)
they should use 27 pounds of chocolate candies.