The complete question is
<span>Sarah rides her horse for 2 1/6 hrs with a constant speed of 6 km/hr and then for another 2 hours and 5 minutes with a constant speed of 12 km/hr what is her average speed for the total trip?</span>
we know that
speed=distance/time
1) Sarah rides her horse for 2 1/6 hrs with a constant speed of 6 km/hr
time=2 1/6 hrs----> 13/6 hrs
speed=6 km/h
distance=speed*time----> 6*(13/6)---> 13 km
2)for another 2 hours and 5 minutes with a constant speed of 12 km/hr
time=2hrs+5 minutes----> 2+(5/60)--> 125/60 hrs
speed=12 km/hrs
distance=speed*time----> 12*(125/60)---> 25 km
3) find the average speed for the total trip
total distance=13 km+25 km----> 38 km
total time=(13/6)+(125/60)----> (10*13+125)/60----> 4.25 hours
speed=38/4.25----> 8.94 km/hrs
the answer is
8.94 km/hrs
Answer:
Angle 2 is 36 degrees
Step-by-step explanation:
73 - 37 = 36
The seller makes a over all loss of $2000
What you have to do to be able to find the answer is $672 divided be $12. That should give you how many cars the soccer team washed.
Step-by-step explanation:
A = P (1 + r/n) (nt)
A = the future value of the investment/loan, including interest
P = the principal investment amount (the initial deposit or loan amount)
r = the annual interest rate (decimal)
n = the number of times that interest is compounded per unit t
t = the time the money is invested or borrowed for
p = 3000
r = 5%/100 = .05 (has to be in decimal format)
n = 2
t = 1
A = 3000(1 + .05/2)⁽²ˣ¹⁾ note (make sure you use ^ (power of) for the 2x1)
use PEMDAS to work out problem
P arenthesis
E exponents
M ultiplication
D ivision
A ddition
S ubtraction
A = 3000(1 + .05/2)⁽²ˣ¹⁾
a = 3000(1 + .025)^²
a = 3000(1.025)^2
a = 3000 x 1.050625
a = 3151.875
she would have $3,151.88
