Question

A dishwasher was advertised at $640 with a further $175 for installation. Calculate the total purchase and installation costs if the cost of the dishwasher (excluding installation) is reduced by 18% due to minor scratching.​

Answer 1

$699.80

Explanation:

640(18%)

640 x 18

100

reduce fraction

640 x 9

50

simplify

64 x 9

5

576

5. or 115 1

5. of 115.20

640 - 115.20 = 524.80 (dishwasher)

524.80 + 175 = 699.80 (total including installation)

Answer 2

$699.80

Explanation:

$640 - 18% = 524.80

(640x18)/100 = 115.20

640-115.20 = 524.80

524.80+175 = 699.80