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AnnZ [28]
3 years ago
13

Please help me by solving this!​

Mathematics
1 answer:
JulsSmile [24]3 years ago
5 0

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

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Answer:

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Step-by-step explanation:

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3 years ago
URGENT PLEASE HELP
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Answer:

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Step-by-step explanation:

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4 0
3 years ago
There are seven cars parked in a row exactly the same distance from each other the first car is 31 inches from the second car th
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2 a. An airplane flies with a constant speed of 680 km/h. How far can it travel in 2 hours?
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Answer:

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Step-by-step explanation:

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