Question

She writes down

160 x 1.4 = 224
Sue's method is wrong.
a) Instead of multiplying by 1.4, write down
what she should have multiplied by
Bill wants to decrease 160 by 6%
b) Complete the statement below to show how Bill can decrease 160 by 6%

Answer 1

Answer: a) x 1.04

b) x 0.94 = 150.4

Explanation:

a) find 4% of 160 = 6.4

160 + 6.4 = 166.4

166.4/160 = 1.04 therefore you multiply by 1.04

b) find 6% of 160 = 9.6

160 - 9.6 = 150.4

150.4/160 = 0.94 therefore you multiply by 0.94 which then equals to 150.4

:)

Answer 2

To decrease 160 by 6% you have to do 160×.06 and you get 9.6. then you do 160-9.6 and you get 150.4