Step-by-step explanation:
a) 3km=20 minutes
times both side by 3 as 20x3 is 60mins equal 1 hour
so 3kmx3 is 9km
b) 3km is 20 mins
times both side by 6 as 20x6 is 120 mins which is equivalent to 2 hours
therefore, 3kmx6 is 18km
c) the assumption is that the longer you run means that youll jog more further so more fitness
Answer:
47, 40, 33, 26 are the first four terms of the sequence.
Step-by-step explanation:
Expression representing the sequence is,
where n = number of term in the sequence
For n = 1,
= 47
For n = 2,
= 47 - 7
= 40
For n = 3,
= 47 - 7(3 -1)
= 47 - 14
= 33
For n = 4,
= 47 - 21
= 26
Therefore, first four terms of the sequence are 47, 40, 33 and 26.
Answer:
C
The "inverse operation" is just a way of saying "what do you do to isolate the variable". In this case, we isolate y, so we have to move all terms to the right side. To do that, we subtract 12 from each side to there will only be "y" on the left side.
N = d - 5
2n/(d + 16) = n/d - 1/3 n/d
2n/(d + 16) = 2/3 n/d Divide by 2n
1 / (d + 16) = 1/3 d
Here's the tricky part.
d + 16 = 3d the two denominators are equal. the numerators are both 1.
16 = 2d
d = 8
so the numerator is d - 5
n = 8 - 5
n = 3
Let's see if it checks out.
n = 3
d = 8
2*3 = 6
8 + 16 = 24
New fraction 6/24 = 1/4
(3/8 - 1/3 ) = 1/8
3/8 - 1/8 = 1/4 so it checks with the original conditions put on it.
