Question 116287
CHECK MY APPROACH---I DIDN'T COME UP WITH THE SAME ANSWER AS YOU AND MY ANSWER SEEMS TO CHECK OUT


Let x=amount of hamburger that costs $1.10 per pound

Now we know that the cost of the hamburger before it's mixed together has to equal the cost of the hamburger after it's mixed together.  So our equation to solve is:

$1.10x+$1.80*50=$1.30(50+x) simplify

$1.10x+$90=$65+$1.30x  subtract $1.30x and also $90 from each side

$1.10x+$90-$90-$1.30x=$65-$90+1.30x-$1.30x  collect like terms

-0.20x=-25  divide both sides by -0.20

x=125 lb--------------------amount of hamburger that cost $1.10 per lb

CK
125*1.10+$1.80*50=$1.30*175
137.5+90=227.5
227.5=227.5


Hope this helps---ptaylor