The mean score of a girl in 3 tests is 68. What should her mean score in 2 remaining tests be in order to have an overall average of 80? 85 93 98 O 89

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter7: Applying Fractions
Section7.2: Proportions
Problem 47WE
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The mean score of a girl in 3 tests is 68. What should her mean score in 2 remaining
tests be in order to have an overall average of 80?
85
93
98
89
SAMSUNG
Transcribed Image Text:The mean score of a girl in 3 tests is 68. What should her mean score in 2 remaining tests be in order to have an overall average of 80? 85 93 98 89 SAMSUNG
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