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2007-08-28 16:46:02 · 6 answers · asked by Anonymous in Science & Mathematics Mathematics

6 answers

Equal to -5 x 7/2, or -35/2.

2007-08-28 16:48:44 · answer #1 · answered by Anonymous · 0 0

Here's the principle you want to use in this problem: When dividing by a fraction, simply multiply by the fraction's reciprocal (inverse) instead. Here's how:
-5 X 7/2 ... 7/2 is the reciprocal of 2/7
Perform the multiplication and get:
-35/2 The fraction on the left is your answer.

2007-08-28 23:54:22 · answer #2 · answered by Piguy 4 · 0 0

Note:

'/' means 'divided by'
'=' means 'equals to'

Note that / is the opposite of *
While '/' is about division, '*' is about multiplication.
Since '/' is the opposite of '*', hence whenever you see:

a / (b/c)

It is also equal to

a * (c/b)

Notice that the (b/c) is reversed to (c/b) when the '/' is changed to the opposite of it, that is '*'

Therefore to answer your question:

Q: -5 divided by 2/7

= -5 / (2/7)

= -5 * (7/2)

= -35 / 2

= -17.5 (in decimal form)

Therefore, the answer is

======================
Answer : - 35/2 or -17.5
======================

Hope this helps.

Kind regard,
Ryonn

2007-08-28 23:54:58 · answer #3 · answered by Mr. Math Contributor 4 · 0 0

=(-5) / (2/7)
=(-5) x (7/2)
= -35/2
= -17 1/2

2007-08-29 00:06:17 · answer #4 · answered by JLO 2 · 0 0

2/7/-5
=-2/35
=-0.05714

2007-08-28 23:49:07 · answer #5 · answered by pokemon maniac 6 · 0 0

-5 / (2/7) = -5 ( 7/2) = -35/2 = -17.5

2007-09-01 23:47:34 · answer #6 · answered by Will 4 · 0 0

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