Answer:
12.5 s
Step-by-step explanation:
If acceleration is constant, speed is proportional to time. To increase the speed by 50 km/h, the car will need an additional time given by ...
t/(50 km/h) = (20 s)/(80 km/h)
t = (20 s)(50/80) . . . . . multiply by 50 km/h
t = 12.5 s
It will take 12.5 more seconds for it to reach a speed of 130 km/h.
Answer:
He payed 56 dollars for the concert.
Step-by-step explanation:
46.25 + 9.75= 56
[Question Deleted 6/15/2021]
lets play this
anyone can do it ima go to sleep lol
Step-by-step explanation:
If y is largest number, you want y, and the two next smaller even integers smaller than y - i.e. y, y-2, and y-4
The sum of these is y + (y-2) + (y-4).
This simplifies to 3y - 6 or 3(y - 2)
Since we don’t know what y is, this is as far as we can solve the problem.
2a + 3b = 6 --> Equation 1
5a + 2b = 4 --> Equation 2
Equation 1 * 5 --> 10a + 15b = 30
Equation 2 * 2 --> 10a + 4b = 8
Equation 1 - Equation 2 --> 11b = 22 --> b = 2
Sub b=2 in Equation 1 (or 2, either works):
2a + 3b = 6
2a + 3(2) = 6
2a + 6 = 6
2a = 0
a = 0
b = 2, a = 0
