Let Lisa's height be x, Ian's be y and Jim's be z
x = 10 + y . . . (1)
y = 14 + z . . . (2)
y + 14 + z + 14 = 170 + x + 14
y + z - x = 170 + 14 - 28 = 156 . . . (3)
From (2), z = y - 14 . . . (4)
Putting (1) and (4) into (3) gives,
y + y - 14 - 10 - y = 156
y = 156 + 24 = 180
Therefore, Ian's height is 180 centimeters
What are the answer choices
It was incensed by 17%
17%
58.50-50=8.5
8.5/50=0.17
0.17=17%
Of means multiplication in mathematics
Hope that helps :)
5x+2y=9
-3x-2y=-7
The +2y and -2y eliminate
2x=2
x=1
Hope This Helps and God Bless!