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k0ka [10]
3 years ago
9

Mr. Toshio lent out 11 rulers at the beginning of class, collected 4 rulers in the middle of class, and gave out 7 at the end of

class. He had 18 at the end of the day. How many rulers did he start with?
Mathematics
2 answers:
Drupady [299]3 years ago
8 0
Mr. Toshio had 32 rulers. 32-11 = 21 rulers. 21+4 = 25 rulers. and 25-7 = 18 rulers
astra-53 [7]3 years ago
7 0

Answer:

Mr. Toshio started with 32 rulers

Step-by-step explanation:

Let x be the number of rulers he start with

Mr. Toshio lent out 11 rulers at the beginning of class

Number of rulers - 11

x-11

He  collected 4 rulers in the middle of class. So we add 4

x-11+4

He gave out 7 at the end of class. So we subtract 7

x-11+4-7

He had 18 at the end of the day.

x-11+4-7=18

x-14=18

Add 14 on both sides

x=32

Mr. Toshio started with 32 rulers

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