Laura paddles in her canoe at a speed of 5 mph for 5 miles.
As we know that
Substitute the values we get
Laura hops on her windsurfer and sails for 12 miles at a speed of 6 mph.
Again using the above formula we can write
Hence from equation (i) and (ii), we can say total time of travel
First let's define variables:
r: reading
s: skimming
We write the system of equations that adapts to the problem:
r + s = 275
(15/10) r + (10/15) s = 355
We solve the system of equations:
r = 206
s = 69
Note: see attached image for system solution.
Answer:
Jayden had to skim 69 pages through
Subtract these 2 equations,
5x-5x +3y-y = -4-6
2y = -10
y = -5
-5 is your answer.
Let x be the smallest number.
x+(x+1)+(x+2)=384
3x+3=384
3x=381
x=127
The three consecutive numbers are 127, 128 and 129.
Hope my answer helped u :)