3x 10'4+ 2.5 x 10’5 =
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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
m =
add to both sides
m = - +
we require a common denominator for both fractions before adding
multiply numerator/denominator of - by 2
multiply the numerator/denominator of by 3
= - +
=