You download 2 dvds and 10 songs for $18. your friend downloaded 3 dvds and 15 songs for $27. write a system of linear equations that represents this situation. can you determine the price of each dvd and each song? explain.

see explanation

Step-by-step explanation:

let d represent a DVD and s a song then the system of equations is

2d + 10s = 18 → (1)

3d + 15s = 27 → (2)

The equations are multiples of each other and have an infinite number of solutions.

that is (1) ÷ 2 and (2) ÷ 3 , gives

d + 5s = 9 and d + 5s = 9 ← infinite number of solutions

b: y = 2x + 2

step-by-step explanation:

y = 2x + 1

we want a line that is parallel, so it will have the same slope

the line is in the form y= mx+b, so the slope is 2

we have a slope and the y intercept (0,2)

since x is 0 we know the y point which is the y intercept

we can use y= mx+b to write the equation of the line

m is the slope and b is the y intercept

y = 2x +2

24

step-by-step explanation:

you just have to add the 15 + 9 to get 24

you do this bc you want to find the total of the whole line and those two numbers make up the line