19clarket 19clarket

20-01-2021
Mathematics

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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.

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joshuarichardson2306 joshuarichardson2306

20-01-2021

Answer:

84.3kg rounded or 84.2kg unrounded

Step-by-step 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

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