I believe that x=9. I used cross multiplication. First, I multiplied 6 by 15. Second, I divided this product of 90 by 10. The quotient is 9.
Well first, you need to find out how many groups of 65 there are. So take 455 ÷ 65.
There are 7 groups of 65 people.
Then, you take 4 × 7 to get your answer.
<span><em>28</em></span>
Answer:
median=75.5
mode=76
mean=453/6
mean=75.5
Step-by-step explanation:
Answer:
y =5x
Step-by-step explanation:
5+8=13
1st
I need to find out what percentage is left after 1 minute
100 - 5.7 = 94.3% (0.943)
2nd plug into the formula
![A = A_{0} r^{t}](https://tex.z-dn.net/?f=A%20%3D%20%20A_%7B0%7D%20%20r%5E%7Bt%7D%20)
A0 = 310
r = 0.943
t = 9