Respuesta :
you add 3.5 and 2.25 because that is the fabric your needing and you subtract them from 6.5 and get: 6.5 - 5.75 = .75 yards of fabric left over
First you add both of the yards needed for both of the dresses:
3.5 + 2.25 = 5.75 yards
Then subtract the amount of fabric she buys (6.5 yards) by the total amount she needs (5.75 yards) to get how much she will have left over:
6.5 - 5.75 = .75 yards
So Sharyn has 0.75 yards of fabric left.
3.5 + 2.25 = 5.75 yards
Then subtract the amount of fabric she buys (6.5 yards) by the total amount she needs (5.75 yards) to get how much she will have left over:
6.5 - 5.75 = .75 yards
So Sharyn has 0.75 yards of fabric left.