<span>add the ratio together in this case 2+3. then divide the number by that. in this case 60/5. with that number, in this case 12, multiply this number bu the ratio.. (12*2) : (12*3) it will give you a ratio of 24:36
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2+3=5
<span>2/5*60=12*2=24 </span>
3/5*60=12*3=36 =<span>24:36</span>
Answer: ![\frac{4}{15}](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B15%7D)
Step-by-step explanation:
The number of seats in the first row= 8
Total number of seats in the classroom= ![8+10+12=30](https://tex.z-dn.net/?f=8%2B10%2B12%3D30)
The probability of the first student who enters the classroom will be assigned a seat in front row is given by:-
![P=\frac{\text{Number of seats in first row}}{\text{Total seats}}\\\Rightarrow\ P=\frac{8}{30}=\frac{4}{15}](https://tex.z-dn.net/?f=P%3D%5Cfrac%7B%5Ctext%7BNumber%20of%20seats%20in%20first%20row%7D%7D%7B%5Ctext%7BTotal%20seats%7D%7D%5C%5C%5CRightarrow%5C%20P%3D%5Cfrac%7B8%7D%7B30%7D%3D%5Cfrac%7B4%7D%7B15%7D)
Therefore, the probability of the first student who enters the classroom will be assigned a seat in front row is
.
This is 2/21. You can simplify the 4 in -4/7 to 2 and the 6 in -1/6 to 3. So it would now be -2/7 times -1/3. A negative times a negative is a positive, so the answer will be positive. 1 times 2 is 2 and 7 times 3 is 21. 2/21
well, I think it's 60 because it prime factors are 2, 3, 5.