Answer:
Step-by-step explanation:
Answer:
why they're so helpful
Step-by-step explanation:
Answer:
Kim will need to spend 67 minutes on her sixth ride
Step-by-step explanation:
Represent the number of minutes of her sixth ride by m.
Then the average number of minutes is
53 + 43 + 56 + 54 + 45 + m
---------------------------------------- = 53
6
Multiplying both sides of this equation by 6 yields
6(53 + 43 + 56 + 54 + 45 + m)
--------------------------------------------- = 6(53)
6
which simplifies to
251 + m
---------------- = 318
or 251 + m = 318. Subtract 251 from both sides to obtain the value of m:
m = 318 - 251 = 67
Kim will need to spend 67 minutes on her sixth ride to attain an average ride length of 53 minutes.i
Answer:
8 = 2^3, 52 = 2^2 * 13
Step-by-step explanation:
8 = 2 * 2 * 2 = 2^3
52 = 2 * 2 * 13= 2^2 * 13
Sin x = cos (90-x)
eg sin 42 = cos(90-42) = cos 48
so the answer is B
