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tankabanditka [31]
3 years ago
7

What is the value of x?

Mathematics
1 answer:
Dafna1 [17]3 years ago
3 0

Answer:

28


Step-by-step explanation:

We use the concept of similarity to find the value of X.

Δ APR ≡  ΔCDR

∴ AR/CR = PR/DR

   (10+x)/x = (15+42)/42

42(10+x) = 57x

420 + 42x = 57x

57x - 42x = 420

15x = 420

x = 420/15

  = 28

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