Answer:
1. 4 1/8 +2/8
33/8+2/8
=35/8 0r 4 3/8
2.8 4/16 +12/16
132/16+12/16
=144/16
=9
3. 2 65/100+91/100
265/100+91/100
=356/100
=89/25
4. 4 14/40+36/40
174/40+36/40
=210/40
=21/4
5.1 12/20+10/20
32/20+10/20
=42/20
=21/10
Step-by-step explanation:
Y2-y1/x2-x1 is the equation
Let K and T be the speeds of Kirk and Thor respectively.
Note the standard definition that d=vt, distance equals velocity times time.
t=d/v
For Kirk, t=525/(T+5)
For Thor, t=490/T
Since we are told that they have traveled the same amount of time we can say t=t which leaves us:
525/(T+5)=490/T multiply both sides by T
525T/(T+5)=490 multiply both sides by T+5
525T=490T+2450 subtract 490T from both sides
35T=2450 divide both sides by 35
T=70
So Thor's average speed is 70kph, since K=T+5
K=75kph
So Kirk's average speed is 75kph
The answer to this question is: 300
The common denominator would be
8 because if you multiply 1/2 by 4 then you get 8/8 and what you multiply to their fraction you do to the other so the other fraction would be 16/8
