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olga55 [171]
3 years ago
7

Ella sold 37 necklaces for $20 each at the craft fair. She is going to donate half of the money she earned to charity. Use the C

ommutative Property to mentally find how much money she will donate. Explain the steps you used.
Mathematics
2 answers:
lozanna [386]3 years ago
5 0

Ella sold 37 necklaces for $20 each at the craft fair. She is going to donate half of the money she earned to charity. Use the Commutative Property to mentally find how much money she will donate. Explain the steps you used.

Solution:

Earning from 1 necklace=$20

Earning from 37 necklaces=$20*37

Half of the earnings= \frac{20*37}{2} =\frac{20}{2}*37=10*37

Half of the earnings=$10*37

Now, Applying Commutative Propert, a*b=b*a

So, Money she need to donate= Half of the earnings= 10*37 =37*10

So, Money she donates=$370

money she will donate=$370

atroni [7]3 years ago
3 0
370 because 740 halved is 370

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