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The population of a city is expected to increase by 7.5% next year. If p represents the current population, which expression represents the expected population next year?



Answer :

konrad509
[tex]p+0.075p=1.075p[/tex]
greyhoundbloke
100% represents the current size. To work out the new size, you add the percentage increase - this gives 107.5%

"per cent" means "per hundred" and is a ratio.

To work out the new value for p you multiply it by 107%.

To find a percentage, you multiply the the "percent" ratio and then divide by 100.

So 100% of p is: p * 100 / 100  (you can see here that 100/100 = 1, so the value is unchanged).

107% of p will be: p * 107 / 100


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