The cost yy (in dollars) to rent a moving van is proportional to the number xx of days that the van is rented. it costs $140 to rent a van for 4 days. write an equation that represents the cost to rent a moving van for xx days.

Step-by-step explanation:

Given : The cost y (in dollars) to rent a moving van is proportional to the number x of days that the van is rented.

It costs $140 to rent a van for 4 days.

i.e. The cost of rent a moving van for 4 days = $140

Then, by unitary method ,

The cost of rent a moving van for 1 day =

Now, the cost for renting a van for x days =

Cost of renting van for one day × (x)

= 35x

Then, the required equation that represents the cost to rent a moving van for x days :

b.an increase in a causes b to decrease