+0  
 
0
45
1
avatar

Give a step by step explanation to find x.

 

 Mar 21, 2021
 #1
avatar+17 
0

Both of these problems require the use of constant ratios. 

 

8. 

LM/QR = NK/SP

(4x+4)/48 = (7x-9)/60

(x+1)/12 = (7x-9)/60

12(7x--9) = 60(x+1)

84x - 108 = 60x + 60

24x = 168

x = 7

 

9.

YZ/SZ = RT/ST

(2x+2)/35 = (3x-7)/40

35(3x-7) = 40(2x+2)

105x - 245 = 80x + 80

25x = 325

x = 13

 Mar 21, 2021

23 Online Users

avatar
avatar
avatar