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
Answer:
6.1414
Step-by-step explanation:
The ten-thousandth is in the fourth place after the decimal point, then add the rounding rule, (4 or lower, do nothing. 5 and up, round up) and you get 6.1414
D. Subtraction property of equality, because since its +34 you have to change it to a subtraction sign and subtract it from both sides. So it should look something like this
B. y=2x-12
because the equation B has both x and y each side.
