lizzlegnz999
17.12.2020 •
Mathematics
Dj alpha charges $75 plus $15 per hour . Dj beta charges $50 plus $20 per hour . When will their charges be equal ?
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Ответ:
Step-by-step explanation:
first find the equations for both djs
dj alpha: y = 15x + 75
dj beta: y = 20x + 50
set the equations equal to each other
15x + 75 = 20x + 50
solve for x
25 = 5x
5 = x
after 5 hours the charges will be equal
Ответ:
If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down (no change).
18.6 ≈ 19.0 = 19