Answer- i will travel 9 miles in 10 minutes
[<em>We assume that each piece of apple is identical</em>]
{{{{This part for little more explanation:
There are 12C6 ways that 6 fruits can be taken from the bag
which is equal to
=12!/{(12-6)!*6!}
=(12*11*10*9*8*7*6!) / (6!*6!)
=665280 / (6*5*4*3*2*1)
=924 ways
}}}}}
Your main solution here:
Similarly there are 6C5 ways to get exactly 5 apples out of 6 fruits which is equal to,
=6! / {(6-5)! *5! }
=(6*5!) / (1!*5!)
=6 ways>>>>>>>ANSWER
NOTE: nCx=n! / [(n-x)! *x!] where n=total items and x= no of items choosen
{n is written up in the upper left of C and x is written as Subscript}
Answer:
7f
r = ----------- - 4
z
Step-by-step explanation:
I will assume that you meant:
7f
z = ------------
r + 4
Solve for r. Start by interchanging z and (r + 4):
7f
r + 4 = -----------
z
Now subtract 4 from both sides. This isolates r:
7f
r = ----------- - 4
z
Answer:
That would be Option C.
Step-by-step explanation:
Lets look at y = 4x + 2:-
Let x = a then y = 4a + 2
Now if x in creases to a +2, y = 4(a +2) + 2 = 4a + 8 + 2
= 4a + 10.
(4a + 10) - (4a + 2) = 8 , so this is the required expression, y = 4x + 2.
