Problema Solution
At a fabric store you buy a clothes pattern for $7. You also buy 3/4 red fabric, 2 1/2 yards of purple fabric, and 7/8 yard of blue fabric, The total cost is $23.50. If all three fabrics are the same price per yard, how much do you spend on each fabric?
Answer provided by our tutors
total yard of fabric bought = 3/4 + 2 1/2 + 7/8 = 33/8
so, price of per yard of fabric = (23.5 - 7)/(33/8) = 18.5 /(33/8) = 148/33
money spent on red fabric = 3/4 * 148/33 = 111/33
money spent on purple fabric = 5/2 * 148/33 = 370/33
money spent on blue fabric = 7/8 * 148/33 = 112/33