Hi again!
|2x - 3| - 1 > 4
|2x -3| > 4 + 1
|2x -3| > 5
Now let's solve the absolute value
We know either 2x -3 >5 or 2x -3<-5
Let's solve the first possibility
2x - 3 > 5
2x > 5+ 3
2x > 8
x > 8/2
x> 4
Now solve the second possibility
2x - 3 < -5
2x < -5 + 3
2x < -2
x < -2/2
x< -1
Thus the correct answer is x > 4 or x < -1
I used an online graphing calculator
I hope this helps again!
Answer:
y = 18x + 21
Step-by-step explanation:
Let x be the amount of hours of the renting and y the final cost
y = 18x + 21
In fact the final cost depends from the hours of the renting
24 divided by 8 is 3
so three students play the piano
Brand a: per fork is 0.06 cents.
Brand b: per fork is 0.05
Choose brand B!