bitterclementines15 bitterclementines15

07-11-2020
Mathematics

contestada

What is the value of x in the figure?
A. 10
B. 6
C. 15
D. 12

What is the value of x in the figure A 10 B 6 C 15 D 12 class=

Respuesta :

jcherry99 jcherry99

07-11-2020

Answer:

Step-by-step explanation:

You need to set up a proportion.

(21 - 15) / 21 = 4/(x + 4)

6 / 21 = 4/(x + 4)

2/7 = 4/(x + 4)

2(x + 4) = 7*4

2x + 8 = 28

2x + 8-8= 28 - 8

2x = 20

x = 20/2

x = 10

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