Let the relative speed will be given by:
38/4=9.5 km/h
Let the speed of the first tourist be x km/h
the speed of the second one is (9.5-x) km/h
distance covered by the first one is:
4*x+2=4x+2 km
distance covered by the second one is:
(9.5-x)4 km
=(38+4x) km
total distance will be given by:
(38+4x)+(4x+2)=38
40+8x=38
8x=-2
x=-1/4 km/h
this mean that he was traveling in the opposite direct thus the speed was 1/4 km/k
The speed of the second one will be:
9.5-1/4=9.25 km/h
Answer:
28 polio vaccinations and 32 measles vacinnacions.
Step-by-step explanation:
x= polio vaccinations
y= measles vaccinations
here we have an ecuation system:
x+y=60 (vaccinations)
2x+4y=184 (doses)
In order to solve it I will solve the x in the first ecuation:
x=60-y
And replace it on the other ecuation:
2(60-y)+4y=184 -----> 120-2y+4y=184------>2y=64------->y=32
Now I replace this result in x=60-y, so x=28.
I think that the answer is X=2/7. I hope this helps!!! :)
Answer:
<h2>∠7 = 90°</h2><h2 />
Step-by-step explanation:
∠7 = 180 - 90
∠7 = 90°
see image below