Answer:
21 inches
Step-by-step explanation:
In 1 rotation the angle at the centre = 360°
For 120° the fraction turned = 
= 
, thus
distance travelled = × 63 = 21 inches
I think that b is.the right answer
for.you
Answer:
The train takes 8 hours and 52 minutes.
Step-by-step explanation:
Both Zurich and Vienna are in the same time zone, so there is no time to adjust the time zone.
Leaves: 22:40
Arrives: 7:32
From 23 to 7:32 there are (7 - 0) + (24 - 23) = 8 hours.
32 + (60 - 40) = 32 + 20 = 52 minutes.
The train takes 8 hours and 52 minutes.
4s = 3r
<span>s = 3/4*r </span>
<span>plug this into the second eqution and solve for the other variable: </span>
<span>2r +5(3/4)r = 23 </span>
<span>23/4*r = 23 </span>
<span>r = 4 </span>
<span>plug this r into the above equation we solved: </span>
<span>s = 3/4*r </span>
<span>s = 3/4*4 </span>
<span>s = 3 </span>
<span>system is: </span>
<span>{r=4, s=3}</span>
