Question

Plz help me

The masses of mother and baby are in the ratio 165:8.
The baby has a mass of 9 pounds. Given that 1 pound = 454 g, calculate the mass of the mother in kg. Give your answer to 1DP.

Answer 1

84.3kg rounded or 84.2kg unrounded

Explanation:

9 x 454g = 4.086kg

165:8

4.086/8 = 510.75g

510.75g x 165 = 84273.75g

84273.75g = 84.27375kg

84.27375kg to 1dp = 84.3kg rounded or 84.2kg unrounded