ct47583 ct47583

09-11-2016
Mathematics

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Alexa bought 7 books about animals, 2 books about outer space, and 10 books about trains. Each book cost $3. How much did Alexa spend on the books?

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rachel36127 rachel36127

09-11-2016

7×3=21
2×3=6
10×3=30

21+6+30=57

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09-11-2016

The answer is $57

Take the total of books she bought (7+2+10= 19)and then multiply that by $3 (19*3=$57)

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