Answer:
The correct answer is A.
To find the y-intercept, substitute in 0 for x and solve for y
.
Answer:
day 0, day 120
Step-by-step explanation:
You want to find the value of x that makes both y-values be the same:
y = y
30x +10 = -x^2 +150x +10
x^2-120x = 0 . . . . subtract the right side of the equation
x(x -120) = 0 . . . . . factor
Values of x that make this true are x=0 and x=120.
The same number of each car was sold on day 0 and day 120.
Answer:
What are the units? 13 x 14 ??or 15 x 16 ?
Step-by-step explanation:
Eitther 182 or 240
Answer:2416{APPROX}
Step-by-step explanation:
AMOUNT=290000
NO OF YEARS=10
NO OF MONTHS IN 10 YEARS=120 MONTHS.
SO AMOUNT TO DEPOSIT PER MONTH=290000/120=2416(APPROX)
Answer:
2000 meters
Step-by-step explanation:
When the motorboat is moving downstream, its speed relative to the ground is 18 km/h, so its speed relative to the raft is 15 km/h.
When the motorboat is moving upstream, its speed relative to the ground is 12 km/h, so its speed relative to the raft is again 15 km/h.
Converted to m/min, the relative speed is:
15 km/h × (1000 m/km) × (1 h / 60 min) = 250 m/min
It takes the motorboat 16 minutes to travel to the front of the raft and back. Since the speed is the same in both directions, the motorboat takes 8 minutes to travel the length of the raft.
So the length of the raft is 250×8 = 2000 meters.
