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Exercises Expressions, exponents and radicals

Example 7.51 from Prealgebra, 7.5 Systems of Measurement

Systems of Measurement: example 7.51

Eleanor’s newborn baby weighed $3200$ grams. How many kilograms did the baby weigh?

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Solution
We will convert grams to kilograms.

Multiply the measurement to be converted by 1.

Write 1 as a fraction relating kilograms and grams.

Simplify.

Multiply.

Divide. 3.2 kilograms

The baby weighed $3.2$ kilograms.

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

Kari’s newborn baby weighed $2800$ grams. How many kilograms did the baby weigh?

How did it go?

PreviousSystems of Measurement: example 7.50 Next Systems of Measurement: example 7.52

From Prealgebra (1st edition) by OpenStax (Rice University), section 7.5, licensed under CC BY 4.0. Original at openstax.org. We split the solution into steps; the words, numbers and figures are the book's. OpenStax doesn't endorse this site.