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seropon [69]
3 years ago
6

Please help with the answers

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
3 0
1. Intervals are:
[ 0 - 9 ], [10-19], [20-29], [ 30-39].
4. Intervals are: 
[ 40-49 ], [50-59]. [60 - 69 ].
Tables and histograms are in the attachment.
Download docx
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HELP I DONT GET IT!!!For the system below solve using linear combinations method 2a+3b=1 and -2a+b=11
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Linear combination method just means to add the equations so that one variable with cancel. In this case the a values are already set up so that they will cancel.
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now put 3 back into either of the original equations and solve for a.
2a + 3(3) = 1
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2a = -8
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