It takes max 1.8 hours to walk home from work at a rate of 3.5km/h. how long would it take max to cover the same distance walking at 4.2 kn/ h

1.5 hours

Step-by-step explanation:

First of all, this problem is a variation problem, not a distance problem, which means that the format should be:

1.8 : 3.5

x : 4.2        if x= how long it would take Max to cover the same distance walking at 4.2 km/h

Since they are inversely proportional, we have to multiply 1.8 by 3.5 and then divide the leftovers, which is 4.2 in this case, to equal 1.5 hours.

Glad if it helped!! :)

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23

it has changed from the width and the height.

step-by-step explanation: