Justine enrolls in a music program. The cost of the program includes a one-time registration fee of $45 and a fee of $9 per less
on. If the average cost per music lesson is $12 and Justine has taken x classes, which equation represents this scenario?
A.
1 answer:
Hello. I found this on google. 12 = 45 + 9/x
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Answer:
x + y = 15
y = 3x + 1.5
x + (3x + 1.5) = 15
Step-by-step explanation:
Let :
Soft ball practice = x
Soccer practice = y
y = 3x + 1.5
Total practice time :
x + y = 15 - - - (1)
x + 3x + 1.5 = 15
4x + 1.5 = 15
(3x+4) (2x-6)
6x-18x+4x-24
6x^{2} -14-24
2/15 sorry if it’s wrong all I did was just divide both of them
D.) "The graphs of the equations intersect each other at two places."
Replace x with -4 so it would be:
f(-4)= 2(-4)=-8
-8 is your answer
