How do you solve this equation:
9/(-3/4)
*In words, the equation is nine divided, by negative three quarters.
2007-06-16 15:57:45 · 3 answers · asked by Brandy A.K.A butterfly eyes 1 in Science & Mathematics ➔ Mathematics
Remember, when you divide by a fraction, invert the fraction and multiply
9/(-3/4)
9 * (-4/3) = -12
.
2007-06-16 16:03:45 · answer #1 · answered by Robert L 7 · 0⤊ 0⤋
9/(-3/4) is not an equation, since it is not set equal to some other expression, like the variable x.
9/(-3/4) is a numerical expression that we can simplify to a simpler numerical expression.
To remove the -3/4 from the denominator we will multiply it by its reciprocal, -4/3. This will change the denominator to the number 1. The numerator will be multiplied by -4/3 also, so that the new expression will have the same value as the original.
9/(-3/4)
= [ 9(-4/3) ] / [ (-3/4)(-4/3) ]
= [ -36/3 ] / [ -12 / -12 ]
= -12 / 1
= -12
So, 9/(-3/4) represents the same number as -12.
2007-06-16 23:16:58 · answer #2 · answered by mathjoe 3 · 0⤊ 0⤋
9 divided by (-3/4) is equal to
9 * (-4/3)
= -12
when u divided 'x'number by 'y'u take the reciprocal of 'y' and multiply that to 'x'...
hope it helps..
2007-06-16 23:06:07 · answer #3 · answered by jboy 2 · 0⤊ 0⤋