3 years ago

Calcutate these values:

Mathematics

2 answers:

Anna71 [15]3 years ago

6 0

Answer: A) 84.5 kg

B) 76.26 cm

C) $402.50

D) $390.00

Step-by-step explanation:

Increase means "ADD the rate to 1".

Decrease means " SUBTRACT the rate from 1".

The rate should should be in decimal form (move the decimal two places to the left to convert a % to a decimal).

A) 65(1 + 0.30)

= 65(1.3)

= 84.5

B) 82(1 - 0.07)

= 82(0.93)

= 76.26

C) 350(1 + 0.15)

= 350(1.15)

= 402.5

D) 500(1 - 0.22)

= 500(0.78)

= 390

Anettt [7]3 years ago

3 0

A.84.5

B.76.26

C.402.5

D.390

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