If x represents a number does 2/5 timex always represent 40% of that number

Yes

Step-by-step explanation:

The answer is yes

will always represent 40% of the number .

This is because, if we want to calculate 40% of a quantity, what we do is we divide it by 100 and then multiply that by 40:

40% of x =  

but it turns out that we can simplify the fraction .

to simplify it, we divide both 40 and 100 by 20:

40% of x =

and since

and

we get

40% of x =

so yes, is equal to 40% of the quantity

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.