At Renaldi's Pizza, A soda and two slices of the pizza of the day cost $10.25. A soda and four slices of the pizza day cost $18.75. Find the cost of each item.

Given:

A soda and two slices of the pizza of the day cost $10.25.

A soda and four slices of the pizza day cost $18.75.

To find:

The cost of each item.

Solution:

Let x be the cost of a soda and y be the cost of each slice of the pizza.

A soda and two slices of the pizza of the day cost $10.25.

          ...(i)

A soda and four slices of the pizza day cost $18.75.

          ...(ii)

Subtracting (i) from (ii), we get

Putting y=4.25 in (i), we get

Therefore, the cost of each soda is $1.75 and the cost of each slice of pizza is $4.25.

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4