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Farmer Holstein weighed each of his cows. He found that Jo weighs 711 kilograms, Marty weighs 533 kilograms, and Jennifer weighs 664 kilograms.
Find the mean weight.

kg

Farmer Holstein weighed each of his cows. He found that Jo weighs $711$ kilograms, Marty weighs $533$ kilograms, and Jennifer weighs $664$ kilograms. $\newline$ Find the mean weight. $\newline$ $\mathrm{kg}$

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Add and subtract decimals: word problems

Full solution

Q. Farmer Holstein weighed each of his cows. He found that Jo weighs

711

kilograms, Marty weighs

533

kilograms, and Jennifer weighs

664

kilograms.

\newline

Find the mean weight.

\newline

\mathrm{kg}

Calculate total weight: Calculate the total weight of all cows. $\newline$ To find the mean weight, we first need to add up the weights of all the cows. $\newline$ Total weight $= \text{Weight of Jo} + \text{Weight of Marty} + \text{Weight of Jennifer}$ $\newline$ Total weight $= 711 \, \text{kg} + 533 \, \text{kg} + 664 \, \text{kg}$ $\newline$ Total weight $= 1908 \, \text{kg}$
Count number of cows: Count the number of cows. $\newline$ Farmer Holstein has three cows: Jo, Marty, and Jennifer. $\newline$ Number of cows = $3$
Calculate mean weight: Calculate the mean weight. $\newline$ The mean weight is the total weight divided by the number of cows. $\newline$ Mean weight = $\frac{\text{Total weight}}{\text{Number of cows}}$ $\newline$ Mean weight = $\frac{1908\,\text{kg}}{3}$ $\newline$ Mean weight = $636\,\text{kg}$

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