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Evgen [1.6K]
3 years ago
9

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

<u>Step-by-step explanation:</u>

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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