Average speed = total distance / total time
(6 km + 3 km + 2km) / (6 km/60 km/hr + 3 km / 90 km/hr + 2 km / 30 km/hr)
11 / ( 1/10 + 1/30 + 1/15) = _______________ km / hr
Line equation given y = 8/7 x + 18 x -axis intercept is when y = 0
0 = 8/7 x + 18 solve for x then your point is x, 0
Height = 54=6 = 60 ft
Tan = opp/ adj = 60/distance
tan 12 = 60 / distance
60 / ( tan(12o) = distance Finish from here !
c = 51 + 5x
t = 41 + 15x equate them to find the time , x when they are on the same page
51 + 5x = 41+ 15x
x = 1 hrs
cole will have 51 + 5(1) = 56 pages ..... and so will terrence
Use distance formula between the center and the point given to calculate r = sqrt 2
standard form of circle with center h, k is (x-h)^2 + ( y-k) ^2 = r^2
soooo ( x+3)^2 + (y+17)^2 = 2
= cos^2 (1+ sin^2 / cos^2)
= cos^2 + sin^2 = 1
expand to get
1 - cos^2 x this equals sin^2 x
Here ya go ....
fv = pv ( 1 + i)n pv = 925 i = .0625 (this is 6.25% in decimal) n = 1.5 ( 18 months is 1.5 years)
fv = 925 (1 .0625)1.5= ~~1013.06 dollars
He read 4/5 so there is 1/5 remaining 1/5 * 90 = 18 read half of this , then half of this remains = 9 pages left to read
