X=1,5
I think yeah it should be that
Answer:
![A= 5n-45](https://tex.z-dn.net/?f=A%3D%205n-45)
Step-by-step explanation:
Can u gimme brain plz!
Answer:
0.3
Step-by-step explanation:
From the evidence, they were two persons on the scene with blood type O and AB. The Probability that blood type O committed the crime is 0.5 = 1/2 which is the same as the probability that blood type AB committed the crime.
Since they are 60% of blood type O in the community, the Odds that Sam whose blood type is O was the one found at the scene is 0.5 * 60% = 0.3
0.5 * (60/100) = 0.3
Answer:
![1 \dfrac{5}{7}\ mph](https://tex.z-dn.net/?f=1%20%5Cdfrac%7B5%7D%7B7%7D%5C%20mph)
Step-by-step explanation:
Let x mph be the current's rate.
<u>Upstream:</u>
Distance = 18 miles
Rate = 12 - x mph
Time
hours
<u>Downstream:</u>
Distance = 24 miles
Rate = 12 + x mph
Time
hours
Time is the same, so
![\dfrac{18}{12-x}=\dfrac{24}{12+x}\\ \\18(12+x)=24(12-x)\\ \\216+18x=288-24x\\ \\18x+24x=288-216\\ \\42x=72\\ \\x=\dfrac{12}{7}=1 \dfrac{5}{7}\ mph](https://tex.z-dn.net/?f=%5Cdfrac%7B18%7D%7B12-x%7D%3D%5Cdfrac%7B24%7D%7B12%2Bx%7D%5C%5C%20%5C%5C18%2812%2Bx%29%3D24%2812-x%29%5C%5C%20%5C%5C216%2B18x%3D288-24x%5C%5C%20%5C%5C18x%2B24x%3D288-216%5C%5C%20%5C%5C42x%3D72%5C%5C%20%5C%5Cx%3D%5Cdfrac%7B12%7D%7B7%7D%3D1%20%5Cdfrac%7B5%7D%7B7%7D%5C%20mph)
Its false because it can't repeat in a set.