SOLUTION: a metallurgist has one alloy containing 20% copper and another containing 70% copper. These can be blended to get a mixture between 20 and 70%. a metallurgist has one alloy con

Question 668879: a metallurgist has one alloy containing 20% copper and another containing 70% copper. These can be blended to get a mixture between 20 and 70%.
a metallurgist has one alloy containing 20% copper and another containing 70% copper. These can be blended to get a mixture between 20 and 70%. use your model to calculate the mixture needed for 50lbs of 40% copper.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

a metallurgist has one alloy containing 20% copper and another containing 70% copper. These can be blended to get a mixture between 20 and 70%. 

Create a model to determine how many pounds of each alloy to mix to achieve 

a given weight and copper percentage: 

calculate the mixture needed for 50lbs of 40% copper.

      

                   .50x = .20*50

                      x = 20lbs 70%  and 30lbs 20% 

RELATED QUESTIONS

A metallurgist has one alloy cantaining 20% copper and another containing 70% copper.... (answered by funmath)
A metallurgist has one alloy containing 29% copper and another containing 53% copper. How  (answered by mananth)
A metallurgist has one alloy containing 49% copper and another containing 62% copper. How  (answered by ikleyn)
A metallurgist has one alloy containing 30% copper and another containing 67% copper. How  (answered by ewatrrr)
A metallurgist has one alloy containing 22% copper and another containing 53% copper. How  (answered by ikleyn)
A metallurgist has one alloy containing 25% copper and another containing 62% copper. How  (answered by Maths68)
A metallurgist has one alloy containing 34% copper and another containing 55% copper. How  (answered by josmiceli)
A metallurgist has one alloy containing 21% copper and another containing 60% copper. How  (answered by richwmiller)
A metallurgist has one alloy containing 22% copper and another containing 53% copper. How  (answered by ikleyn)