Question

Meghan sells advertisements for a radio station. Each 30 second ad costs $20 per play, and each 60 second ad

costs $35 per play. Meghan sold 12 ads for $315. She wrote the system below letting x represent the number of 30
second ads and y represent the number of 60 second ads.
X+ y = 12
20x+35y = 315
What is the solution to the system of equations?

Need answers ASAP!!!!

Answer 1

`(x,y)=(7,5)`

Explanation:

Megan's equation will be:

`20x+35y=315`

`x+y=12`

Substitute
`x=12-y` in the first equation:

`20(12-y)+35y=315`

`15y=75`

`y=75/15`

`y=5`

Find x:

`x=12-5`

`x=7`

Where x and y represent 30-second and 60-second ads sold, we find that Meghan's sales were:

`(x,y)=(7,5)`

hope this helps....