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dshood2298
23.09.2019 •
Mathematics
Mary is thinking of three consecutive even integers, x, y, and z. three times the value of z exceeds half the value of x by 37. what is the value of x?
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Ответ:
x = 10
Step-by-step explanation:
You know z = x+4, so ...
3z -x/2 = 37 . . . . . . . . the given relation
3(x +4) -x/2 = 37 . . . . substituting for z
5/2x +12 = 37 . . . . . . .eliminate parentheses and simplify
5/2x = 25 . . . . . . . . . . subtract 12
x = 10 . . . . . . . . . . . . . multiply by 2/5
Check
3z = 3·14 = 42
x/2 = 10/2 = 5
42 exceeds 5 by 37 . . . . true
Ответ:
175-120=55
55/10=5.5 so He can not afford more than 5 more additional lines.