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solong [7]
3 years ago
6

James completed 18 math problems. This is 30% of the problems he has to do. How many total math problems must he complete to be

done?
Mathematics
2 answers:
algol [13]3 years ago
7 0

Answer:

60 = n

Step-by-step explanation:

This problem can be rewritten as:

18 is 30% of what?

% means "out of 100" and of means "multiply"

18 = 30/100 ⋅ n

100/30 ⋅ 18 = 100/30 ⋅30/100 ⋅ n

1800/30 = 100/30 ⋅ 30/100 ⋅ n (both the 30/100 and 100/30 are crossed out here)

60 = n

Ryan must do a total of 60 problems

Having done 18 problems already he has 42 remaining.

Zepler [3.9K]3 years ago
5 0

Answer:

to many

Step-by-step explanation:

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