<h2>
Option D is the correct answer.</h2>
Step-by-step explanation:
For the first 5 hours of a trip, a plane averaged 120 kilometers per hour.
Distance traveled in first 5 hours = 5 x 120 = 600 km
Let the remainder time be t hours.
For the remainder of the trip, the plane traveled an average speed of 180 kilometers per hour.
Distance traveled in remaining hours = 180 x t = 180t
Total distance traveled = 600 + 180t
Total time taken = 5 + t
Average speed of entire journey = 170 km/hr
We have
Total distance traveled = Average speed of entire journey x Total time taken
600 + 180t = 170 x (5+t)
600 + 180t = 850 + 170t
10t = 250
t = 25 hours
Total time taken = 5 + 25 = 30 hours
Option D is the correct answer.
Answer: $15.37
Yes, proportional
Step-by-step explanation:
Ok So the Equation Here is
y = 1.73x + 4.99
The reason why 4.99 doesn't have a variable is because of the fact it's not being manipulated by time like the 1.73 is. It's a flat rate of 4.99 for the card itself, no increase or decrease in years. However, the 1.73 is affected by how ever many years the player is in retirement. That's why it has X because the amount of 1.73 needs to be multiplied by however many years hes been in retirement.
So Substitute 6 (because 2006 is what year we need to find) for x and we get
y = 1.73(6) + 4.99
Which if you simplify in a calculator or do it in your paper, comes out to be $15.37
*If this Helped I'd Also Appreciate 5* and a ♥ Thanks!*
If I remember how to properly do matrices the answer should be:
-15 10 6
30 25 6
-15 0 16
(-2, -9)
Simply plug -2 into the equation.