50+2x+10+3x+15=180
50-10+15=55
2x+3x=5x
55+5x=180
5x=180-55
5x=125/5
x=25
Answer:
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Step-by-step explanation:
Answer:
The answer 7.48
Step-by-step explanation:
I hope this helped
Answer:
yess, number of CDs and cost represent proportional relationship because as number of CDs increases,cost also increase with it.
both of this value increases with arithmetic gradient