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Two co-teachers, Daniel and Mathew, have to grade a set of math journals. Daniel grades 45% of the journals. Mathew has to grade 121 journals. How many journals are there in all?
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Jun 24, 2016
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Two co-teachers, Daniel and Mathew, have to grade a set of math journals. Daniel grades 45% of the journals. Mathew has to grade 121 journals.
How many journals are there in all?
English
middle-school
Troyen
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121 = 55%
121 / 55 = 2.2
1% = 2.2
2.2 x 100 = 220
220 journals in all
Chuck Adams
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Jun 28, 2016
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Chuck Adams
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