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miskamm [114]
3 years ago
7

Alexandra is two years older than brad. cecilia is three years younger than alexandra. all three ages added together gives a tot

al of 37 years. how old is each student?
Mathematics
1 answer:
MatroZZZ [7]3 years ago
4 0

Let us say that:

x = age of brad

x + 2 = age of Alexandra

(x + 2) – 3 = age of Cecilia = x – 1

 

We are also given that:

x + x + 2 + x – 1 = 37

<span>
solving for x:</span>

3x + 1 = 37

3x = 36

x = 12 = age of brad

x + 2 = 14 = age of Alexandra

<span>x – 1 = 11 = age of cecilia</span>

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====================================================

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<u><em>The correct question is</em></u>

If Triangle ABC is congruent with triangle DEF, DE=17, EF =13, DF =9, and BC = 2x-5, then which of the following is the correct  value of x?

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In this problem

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