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What is the equation that expresses one-half of a certain number #n# is 95?

Answer 1

Isaiah Anthony

#95=1/2n larr" equation"#

For this to work the actual value of #n# is #190#

#color(green)("Solved by thinking it out")#

Given that:#" "95=1/2n#

If half a number is 95 then the number must be two lots of 95.

That is: #95+95 = 190#

,~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #color(green)("Solved by using algebra")#

Given that:#" "95=1/2n#

Determine the value of #n#

Multiply both sides by #color(blue)(2)#

#color(brown)(color(blue)(2xx)95 =color(blue)(2xx)1/2xxn)#

#color(brown)(color(blue)2xx95 =(color(blue)(2))/2xxn)#

But #2/2=1# giving:

#190=1xxn#

#=> n=190#

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Answer 2

Kennedy Adams

The equation that expresses one-half of a certain number ( n ) is 95 is:

[ \frac{n}{2} = 95 ]

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.