Mary has a third of the money that Erin has. Erin has $8 less than John. Together they have $267. How much money does each of th
2 answers:
Answer:
John has $119 Erin has $111 Mary has $37
Step-by-step explanation:
Consider the provided information.
Let John has x dollar.
Erin has $8 less than John = x-8
Mary has a third of the money that Erin has = 1/3(x-8)
Together they have $267.
Multiply both sides by 3.
Thus, John has $119
Erin has $8 less than John = $119-$8 = $111
Mary has a third of the money that Erin has = 1/3($119-$8) = $37
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Answer:
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
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or equivalently
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(1)
(2)
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