Kong took 15% percent fewer seconds than nolan took to complete his multiplication timed test. kong took 85 seconds. how many seconds did nolan take?

Kong took

15% fewer seconds than Nolan took. So Kong took

100%−15%=85%

85/.85=.85*?/.85

100=?

Which means that Nolan took 100 seconds.

This is all from Khan Academy so it's correct!!

Hope this helps!!

To complete the multiplication times test Nolan took 97.75 seconds and this is determined by using unitary method.

Given :

Let the time taken by Kong be 100%. Therefore the time taken by Nolan is 115% because it is given that Kong took 15% percent fewer seconds than Nolan.

So, time taken by Nolan to complete his multiplication timed test:

= 97.75 seconds

To complete the multiplication times test Nolan took 97.75 seconds.

For more information, refer the link given below:

link

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

step-by-step explanation: