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lozanna [386]
2 years ago
14

The table displays the scores of students on a recent exam. Find the mean of the

Mathematics
1 answer:
Natali5045456 [20]2 years ago
7 0

Answer:

84.5

Step-by-step explanation:

multiply score by number of students, add them, divide by total students.

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Let x=aunt's agethen x-14=Mrs West's ageso we have:60-(x-14)=x-40 simplify60-x+14=x-40 subtract x from each side and also subtract 60 and 14 from each side60-60-x-x+14-14=x-x-40-60-14 collect like terms
-2x=-114x=57------------aunt's agex-14=57-14= 43----------Mrs West's ageck60-43=57-4017=17 
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