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never [62]
4 years ago
13

10

Mathematics
1 answer:
Alexxx [7]4 years ago
7 0

Answer:

  (a) P = 4x+10

  (b) x = 6

Step-by-step explanation:

(a) The perimeter is the sum of the side lengths:

  P = AB +AC +BC = 2x +2x +10

  P = 4x+10

__

(b) For P=34, the value of x is ...

  34 = 4x +10 . . . .substitute given value for P

  24 = 4x . . . . . . . subtract 10

  6 = x . . . . . . . . . .divide by 4

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