hannahking1869

04.08.2019 • 

Mathematics

Bagels costs .95 cents, leticia wants to but 12 bagels.she uses partial products to find her total.she says "$16.80 is close to my estimate of 12×$1= $12,so this total is reasonable" do you agree with her? explain your reasoning12 bagels, .95 each10 × 0.5 = 510 × 0.9 = 9 2 × 0.5 = 1 2 × 0.9 = 1.8$5 + $9 + $1 + $1.80 = $16.80

Ответ:

girlchamp654

03.06.2020

Mathematics

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No. Her reasoning was

10 × 0.5 = 5
10 × 0.9 = 9
2 × 0.5 = 1
2 × 0.9 = 1.8

but it should have been
10 × 0.05 = 0.5
10 × 0.9 = 9
2 × 0.05 = 0.1
2 × 0.9 = 1.8

to end up with $11.40

The 0.5 is in the wrong decimal place, it should be 0.05

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Ответ:

prettygirl2204

24.06.2022

Mathematics

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it's your mistake....

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