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user100 [1]
3 years ago
8

You bought 11 books for $42.35 how much would 15 books cost​

Mathematics
2 answers:
Lelechka [254]3 years ago
7 0

Answer:

57.75

Step-by-step explanation:

First I found the unit rate by dividing 42.35 by 11, which is 3.85.

second i multiplied the unit rate by 15 and got 57.75

SVEN [57.7K]3 years ago
3 0

Answer:

$57.75

Step-by-step explanation:

If 11 books cost $42.35,

11b=42.35

b=42.35/11

b=3.85

15 books will cost 15b.

15b

= 15*3.85

= 57.75.

15 Books will cost $57.75.

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