Answer:
AB=707
Step-by-step explanation:
Answer:
2.25
Step-by-step explanation:
It will take the first car 5.5 hours to catch up to the second car.
Step-by-step explanation:
Speed of second car = 55 miles per hour
As the car has started one hour before; it has already traveled
Distance = Speed * Time
Distance = 55*1 = 55 miles
Let,
x be the number of hours.
Distance covered in x hours = 55x
S(x) = 55x+55
Speed of first car = 65 miles per hour
Distance covered in x hours = 65x
F(x) = 65x
For catching up;
F(x) = S(x)
Dividing both sides by 10
It will take the first car 5.5 hours to catch up to the second car.
Keywords: speed, distance
Learn more about speed at:
#LearnwithBrainly
There's no reason behind why 2(x +3) = 3x + 3 (or, after distribution, 2x + 6 = 3x +3). This is because the equation is given. Unless it's a word problem, there's never reasoning behind the equation itself, but there's reasoning behind the answer.
However, X is not equal to 3 because, when you substitute 3 in for x on both sides, you get a not true statement. This statement is that the results are equal to each other, which is false. I'll show you how.
2(3+3) = 3(3) +3
2(6) = 3(3) + 3
12 = 9
As you can see, you get that 12 = 9, which, logically, is false. The true answer to the equation is
2(x +3) = 3x +3 (Step One: Distribute the two)
2x +6 = 3x +3 (Step Two: Combine like terms on one side of the equation. If there are none, you can begin combining like terms on other sides of the equation. For this equation, subtract 2x from both sides of the equation, and also subtract three (NOT 3x) from either side.)
3 = x
Wait... I just got the same answer... Hm, there's something wrong here! I think the equation itself is impossible! How strange!
Answer:
Step-by-step explanation:
Given Perimeter of window
Suppose x and y be the dimension of rectangular window
Perimeter of rectangular portion
Perimeter of semicircle
so
Area of the window is
differentiate A w.r.t x to get maximum or minimum value
put to get maxima/minima
thus
for ,