Here is the answer from SparkNotes
http://www.sparknotes.com/math/algebra2/operationsonfunctions/section3.rhtml
Total amount = 1 x 10 + 3 x 5 = $25
Amount spent = $9.30 + $4.20 = $13.50
Amount left = $25 - $13.50 = $11.50
Answer: $11.50
Divide amount of grapes by number of people.
= 1/2 lb ÷ 4 people
to divide a fraction, multiply by the reciprocal (inverse)
= 1/2 * 1/4
= (1*1)/(2*4)
= 1/8 pound
ANSWER: Each of the 4 people will get 1/8 pound of grapes.
Hope this helps! :)
Answer:
Even if the numbers can be used more than once, this is still no solutions sice all answers will get you to 22 instead of 24.