Hope there are
3(x-4) >= 5x^2 or this 2 from the end what mean ?
3x-12 >=5x^2
0>=5xˇ2 -3x +12
5x^2 -3x +12 =0
D = 9 -240 = -150 so what mean that this equation has not real solutions
Answer:
-7/8
Step-by-step explanation:
-1 1/7 is in improper fraction form -8/7
-8/7x = 1
x = -7/8
Answer:
The total number of unbroken / working slots
Step-by-step explanation:
Given that Devin's DVD case has 3 rows of slots, but 5 slots are broken
Also given that the number of slots in a row is x
1 row has x slots
3 rows has y slots
on cross multiplication we get y = 3x
ie there are a total of 3x slots in the 3 rows
Given that out of these 3x slots 5 . of the slots are broken
Therefore the total number of working slots = total number of slots - number of slots which are broken
total number of working slots are = 3x - 5
Therefore the given expression is the number of working / good slots
