Answer:
every 8 mins
Step-by-step explanation:
bus b
Firsly, the speed of Yochanan is not constant. So he has done a motion that contains an acceleration c.
for this type of movment, the equation is X= 1/2ct²+Vit
and with this last, we can find the equation of speed by dX/dt= ct + Vi
so v= ct+Vi
Vi the initial speed
<span>n average speed of 60 km/h until he got to school implies 60=ct+ 5,
</span>t =1.5 hour, so c= 60 - 5 / 1.5 = 56.66
and by using the formula during the motion with the bus)
V²f - V²i = 2. c (xf -xi) so V²f= 3600km/h V²i = 25 km/h
we can find xf -xi= V²f - V²i / 2c, and <span>xf -xi= 31.54 km
</span> but the total distance is 35 km,
so 35km - 31.54km = 3.45 km
yochanan coverd 3.45 kmby walking
yochanan coverd <span>31.54 km </span>km by riding bus
Answer:
Step-by-step explanation:
las quenos juegos = 18
Answer:
Step-by-step explanation:
Hello,
as cosx+sinx=k we can write that
and we know that
so
which is the answer to the question 2
Now, let s estimate
so
We use the previous result to write
and we know that
so
this is the answer to the first question
finally, let s estimate
so
and this is the answer to the last question
do not hesitate if you need further explanation
hope this helps
Answer: D) 968
Step-by-step explanation:
48 x 24 = 1152 (total pencils)
8 x 23 = 184 (total pencils given to all 23 students)
1152 - 184 = 968 (extra pencils)