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jeka94
3 years ago
6

A box filled with books weighs 11 1/2 kilograms. Assume 1 kilogram = 2.20 pounds. What is the best estimate of the weight of the

box in pounds? O 20 pounds O 25 pounds O 30 pounds O I don't know​
Mathematics
1 answer:
Bad White [126]3 years ago
5 0

Answer:

25 pounds.

Step-by-step explanation:

1 kg = 2.2 pounds

11.5 kg = x pounds            Cross Multiply

1 * x = 11.5 * 2.2

Since you are estimating the question, you don't use a calculator. So 11.5 * 2

23 pounds. 11.5 * 0.2 = 2.3 pounds

Total = 23 + 2.3 = 25.3

So the total is more than 25 but way less than 30

You can make the question a bit more formal by noticing what I did was related to the distributive property.

11.5 ( 2 + 0.2)               Remove the brackets.

11.5 * 2 + 0.2*11.5         Which gives you exactly the same thing as above.

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Sholpan [36]

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nexus9112 [7]

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