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Inessa05 [86]
2 years ago
10

Judy has 15 books in her library. She bought some books at a thrift store on Saturday. She now has 85 books in her library. How

many books did she buy at the thrift store? Write and solve an equation using a variable for each word problem.
Mathematics
2 answers:
netineya [11]2 years ago
6 0

She bought 70 books at the thrift store.

<u>15+x=85</u>

Aleksandr-060686 [28]2 years ago
5 0

Answer:

Judy bought 70 books at the thrift store.

Step-by-step explanation:

I got 70 by adding 15+70=a and a= 85

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Step-by-step explanation:

Since, Total creepy-crawly creatures = 20

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Thus, the total legs belong to flies out of 20 creepy-crawly creatures = 6×16 = 96

Hence, Total legs = 32 + 96 = 128

\text{ The percentage of legs that belongs to spider} = \frac{ \text{ Number of legs of 8 spiders}}{\text{ Total legs}}\times 100

= \frac{32}{128} \times 100

= \frac{3200}{28}

= 25\%

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