Question

Valentina purchased al- yards of nylon as shown on the sales slip. Including tax, howmuch change should she get back from a $20 bill?QTYPRICEAMOUNT3½ yd$2.40/yd5% TaxTotal

Answer 1

Change: 11.18 $

Formula:

Change = Bill - Cost

Cost = (qty * price) * tax amount

Solution:

Cost = (3.5 * 2.40) * 1.05 = 8.4 * 1.05 = 8.82$

Change = 20 - 8.82 = 11.18 $

NB:

3(1/2) = 3.5 yds

5% Tax increase = amount + (amount *0.05) = amount * 1.05