yecats50 yecats50

09-02-2021
Mathematics

contestada

7. If AHBN - ALYR, find the value of x.
B
R
*+11
28
Y 21
L
N
H
3x-7

7 If AHBN ALYR find the value of x B R 11 28 Y 21 L N H 3x7 class=

Respuesta :

clarch19 clarch19

10-02-2021

Answer:

x = 13

Step-by-step explanation:

I created a proportion from similar sides HB ≈ LY and NH ≈ RL

28/21 = (3x - 7)/(x + 11)

then cross-multiply to get

28(x + 11) = 21(3x - 7)

28x + 308 = 63x - 147

28x = 63x - 455

-35x = -455

x = 13

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