SOLUTION: Madison is making a vinaigrette for her catering service using olive oil that costs forty cent per ounce and apple cider vinegar that costs twenty-five cents an ounce.The ideal bat

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Madison is making a vinaigrette for her catering service using olive oil that costs forty cent per ounce and apple cider vinegar that costs twenty-five cents an ounce.The ideal bat      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 847266: Madison is making a vinaigrette for her catering service using olive oil that costs forty cent per ounce and apple cider vinegar that costs twenty-five cents an ounce.The ideal batch of vinaigrette has 25% vinegar.If she has already combined 3 cups of vinegar and 1 cup of oil,how many cups of oil should she add? What is the total cost of her completed recipe?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = cups of olive oil she should add
+x+%2B+1+ will be the cups of oil in vinaigrette
+3+%2B+x+%2B+1+=x+%2B+4+ is the total cups in recipe
I can say:
+3+%2F+%28+x+%2B+4+%29+=+.25+
+3+=+.25%2A%28+x+%2B+4+%29+
+3+=+.25x+%2B+1+
+.25x+=+2+
+x+=8+
She needs to add 8 cups of oil
---------------------------
Let +C+ = total cost
You need to know { ounces / cup ). When you
have that, make the conversions:
cost of oil: ( 40 cents / ounce ) x ( ounces / cup ) x ( 9 cups ) = cents
cost of vinegar: ( 25 cents / ounce ) x ( ounces / cup ) x ( 3 cups ) = cents
Add them to find +C+, total cost