A store mixes red fescue worth $11 per pound and ryegrass worth $15 per pound.the mixture is to sell for $12 per pound. Find how much of each should be used to make a 396- pound mixture.
+130536 Let the no. of pounds of red fescue = x
And the no. of pounds of ryegrass = 396-x
And we have
11x + 15 (396 - x) = 12(396) simplify
11x + 5940 - 15 x = 4752
-4x + 5940 = 4752 subtract 5940 from both sides
-4x = - 1188 divide both sides by -4
x = 297 lbs = fescue
396 - 297 = 99 lbs. ryegrass
