Tim has a large collection of books. the number of paperback books he owns is three less then four times the number of hardcover books. in total, tim has 447 books. how many hardcover books does he own?

let the no of paperback books be x and hardcover books be y

4y - x = 3

Therefore, x - 4y = -3 (1)

x + y = 447 (2)

Put x = 447 - y in eqn 1

447- y - 4y = -3

-5y = -3 - 447

-5y = -450

y = 90

x = 357

Step-by-step explanation:

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.

you'll have to attache the image of the bar graph in order for us to answer : )

step-by-step explanation: