In this pattern all are divisible by 5
20 i.e. divisible by 5
25 is divisible by 5
30 is divisible by 5
35 is divisible by 5
Hence the pattern contain factor 5
Find the value of DE. ܠ ܠ DE
2 answers:
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Original position of the submarine below the Surface = -2 2/3= -8/3
Submarine at a depth of -2 2/3 feet descended by 5 1/2 feet.
So new position of the Submarine =
To Reach the surface submarine must rise = 0-(-49/6)
As seen from the equation the two negative sign [(-)(-)] will change into a positive sign.
At the surface the position of the submarine = +49/6 feet
