Question

A dress in he shop marked y during discount sale it reduced by 20% staffes allowed a further 10% reduction if a staff member bys the dress what will she have to pay in terms of y?

Answer 1

Answer:

Successive doscounts = - a - b +ab/100

Putting the values,

Total discount = -15 - 10 + 150/100 = -25 + 1.5 = 23.5% discount

Hence the final price of the dress = D - 0.235D = 0.765D

Answer 2

Answer:

Please give me a brain mark

Step-by-step explanation:

20% off means that the new price of the skirt will be 80% of the original price:

$30(100% – 20%) = $30(80%)

Converting the percent to a decimal gives:

$30(0.8) = $24.00

There is an additional 15% off the sale price of $24.00, so the final price is 85% of the sale price:

$24(100% – 15%) = $24(85%)

Again converting the percent to a decimal gives:

$24(0.85) = $20.40