Answer:
I think it is C
Step-by-step explanation:
If I'm wrong try B
Answer:
Step-by-step explanation:
Answer:
Jessie sold x DVDs for $<u>3</u> each and then sold a board game for $<u>12</u>. Jessie made (select) $27 in her sales. How many DVDs did she sell?
She sold 5 DVDs
Step-by-step explanation:
3x+12=27
3x=15
x=5
5 DVDS
Answer:
This is a direct variation where the constant of variation is 5/9
Step-by-step explanation:
The equation for direct variation is y = kx
5x-9y =0
Lets try to get this equation in the above form
Add 9y to each side
5x-9y +9y = 9y
5x = 9y
Divide each side by 9
5/9 x = 9y/9
5/9x = y
This is in the form y = k x where k =5/9
Yes because you only need a 90 degree to become a right
