Distance=speed times time
if they take the same time, we cal the time , t
b=bike speed
w=walking speed
bikedistnace=17=bt
walkdistance=9=wt
b is 4 more than w
b=4+w
we have
17=bt
9=wt
b=4w
ok so
multiply first equation by 9 and 2nd by 17
153=9bt
153=17wt
set equal
9bt=17wt
divide both sides by t
9b=17w
sub b=4+w for b
9(4+w)=17w
distribute
36+9w=17w
minus 9w both sides
36=8w
divide both sides by 8
4.5=w
he walks 4.5kph
Answer:
100units^2
Step-by-step explanation:
Using pythagoras theorem, it states that 36+64= area of the unknown
X8/100=32.52
x8=3252
x=406.5%
Answer:
<h2>The rational root of the given polynomial is 42.59.</h2>
Step-by-step explanation:
The polynomial is given by 2x + 5.82 - 81 - 10 = 0
or, 2x + 5.82 - 91 = 0
or, 2x = 85.18
or, x = 42.59.
The rational roots of any polynomial = the ratio of the factors of constants and factors of leading coefficients.
