Given that the diameter of a human hair ![= 9 \times 10^{-5}](https://tex.z-dn.net/?f=%20%3D%209%20%5Ctimes%2010%5E%7B-5%7D%20)
Given that the diameter of a spider's silk ![= 3 \times 10^{-6}](https://tex.z-dn.net/?f=%20%3D%203%20%5Ctimes%2010%5E%7B-6%7D%20)
Now we have to find how much greater is the diameter of a human hair than the diameter of a spider's silk.
To find that we just need to subtract the given numbers.
![9 \times 10^{-5} - 3 \times 10^{-6}](https://tex.z-dn.net/?f=%209%20%5Ctimes%2010%5E%7B-5%7D%20-%203%20%5Ctimes%2010%5E%7B-6%7D%20)
Since powers are not same so let's make them equal
![= 90 \times 10^{-6} - 3 \times 10^{-6}](https://tex.z-dn.net/?f=%20%3D%2090%20%5Ctimes%2010%5E%7B-6%7D%20-%203%20%5Ctimes%2010%5E%7B-6%7D%20)
now we can easily subtract the coefficients that is 3 from 9
![= (90-3) \times 10^{-6}](https://tex.z-dn.net/?f=%20%3D%20%2890-3%29%20%5Ctimes%2010%5E%7B-6%7D%20)
![= 87 \times 10^{-6}](https://tex.z-dn.net/?f=%20%3D%2087%20%5Ctimes%2010%5E%7B-6%7D%20)
![= 8.7 \times 10^{-5}](https://tex.z-dn.net/?f=%20%3D%208.7%20%5Ctimes%2010%5E%7B-5%7D%20)
Hence final answer is
.
Answer: Let's say the first number is x, the next one is x+1, and so on
Step-by-step explanation:
x + (x + 1) + (x + 2) = -51
x + x + 1 + x + 2 = -51
3x + 3 = -51
3x = -54
x = -18
Answer:
40
Step-by-step explanation:
18+12+10
<h3>
The number of robberies in Springfield in 2013 is 250.</h3>
Step-by-step explanation:
Here let us assume that the number of robberies in 2013 = m
Given the number of robberies in 2014 = 315
As we can see the robberies has risen by 26% .\
⇒ 26% + 100 % of Robberies in 2013 = 315
⇒ 126% of m = 315
![\implies \frac{126}{100} \times m = 315\\\implies m = \frac{315 \times 100}{126} = 250](https://tex.z-dn.net/?f=%5Cimplies%20%5Cfrac%7B126%7D%7B100%7D%20%5Ctimes%20m%20%3D%20315%5C%5C%5Cimplies%20m%20%20%3D%20%5Cfrac%7B315%20%5Ctimes%20100%7D%7B126%7D%20%20%3D%20250)
or, m = 250
Hence, the number of robberies in Springfield in 2013 is 250.
Answer:
because either x-6=0 or x+1=0
x-6=0
x=0+6
x=6 OR,
x+1=0
x=0-1
x=-1
Step-by-step explanation: