What number is 6 and 1/2% of 400?

Question

Help! How do I set up this equation..is over of?

Answer 1

Hi Kristin,

 

To figure out what the percent of a certain number is you have to first convert that percent into a decimal and then multiply that by the number. First, understand that another way of writing 6 and 1/2% is also 6.5% (This is because .5 is equal to 1/2). To convert 6.5% into decimals we just move the decimal place to the left twice making it .065. We then turn this decimal into a fraction. This is easy once we remember that .065 is equal to 65/1000. We then reduce this number to 13/200. Finally we multiply this number by 400. So the equation then becomes 13/200 x 400. This then simplifies to 13 x 2 which equals 26. So 6 and 1/2% of 400 is 26. Hope that helps.  

Answer 2

Hi Kristin,

 

Let the number be y

 

what number is 6 and 1/2% of 400

 

6 and 1/2=13/2

 

 y=13/2%×400

 

y=(13/2)×(1/100)×400

 

y=13×400/200=13×2=26

 

26 is 6 and 1/2% of 400

Answer 3

Hi Kristin;

6 and 1/2% is 6.5% is 0.065...

0.065(400)=26

Answer 4

What number: x

is: =

6 and 1/2%: ((6+1/2)/100)

of: *

400: (400/1)      

 

x =  ((6+1/2)/100) * (400/1)

 

x = (6+1/2)(400/100)

 

x = 4(6+1/2)

 

x = 24 + 2

 

x = 26

Answer 5

6 1/ 2 % = 6.5 % = 0.065

 

  On 6 1/2 % sales tax means that : Every dollar of purchase will be charged 6 1/2 cents tax. 

 

 $400 * 0.065 =$ 26