<em>I</em><em> </em><em>hope </em><em>it's</em><em> </em><em>right</em><em> </em><em>have </em><em>a</em><em> great</em><em> day</em><em> </em><em>:</em><em>)</em>
Answer:
Ani age is 21
Biju age is 18
Step-by-step explanation:
let Ani age be X
let Biju age be Y
the difference of their age is 3
i.e X - Y = 3......,....(equ. 1)
let Dharam age be A
let Cathy age be B
i.e A = 2x
B = y/2
the difference of their age is 30
Y/2 - 2x = 30..... (equ. 2)
from equ.1 X = ( 3+y).........( equ.3)
y/2 - 2(3+y) = 30
y/2 - 6 + 2y = 30
multiply both side by 2
y - 6 + 2y = 60
y + 2y = 60 - 6
3y = 54
Y = 18
from equ.3
X = 3+Y where y is 18
X = 3+18 = 21
The expressions equivalent to the original expression of
-2.7 - 16.4 would be
B. -16.4 + (-2.7)
D. -2.7 + (-16.4)