Answer: 300
We know that 5×3=15. Since we are trying to get 1500 we Multiply 300×5 and get 1500.
<u>How do we know?</u>
- As you can see if you cross out 2 of the 0 in 300 you have 3×5. When you multiply it you get 15.
- Also if you cross out 1 of the 0 in 300 you have 30×5. When you multiply that you get 150.
As you see when you still multiply either of those problems you have 15 in it. So we should know 300×5=1500.
Note: We can also multiply 500×3 and get 1500. You still get the same answer but just switched numbers.
To find the limits of the third side, we use the triangle inequality, which says that "the sum of lengths of any two sides must be less the third side, AND must be greater than the difference of these two sides".
If 8 & 12 are the shortest legs, then the third side must be less than (8+12)=20 ft. , and must be more than (12-8)=4 ft.
So the limits of the third side x of this triangle is
4 < x < 20
10.8 or 10.9
Round about these points
Answer:
Probability = 0.15%
Step-by-step explanation:
The provided information is:
Let X be the scores of the IQ scores that is normally distributed with mean
and standard deviation
.
That is ![X \sim N(103,15)](https://tex.z-dn.net/?f=X%20%5Csim%20N%28103%2C15%29)
![103 - 58 = 45 = 3 \times 15](https://tex.z-dn.net/?f=103%20-%2058%20%3D%2045%20%3D%203%20%5Ctimes%2015)
So, 58 is 3 standard deviation left to the mean.
As 99.7% of probability lies within the three standard deviation.
Thus, above three standard deviation is:
![\frac{1-0.997}{2}=0.0015](https://tex.z-dn.net/?f=%5Cfrac%7B1-0.997%7D%7B2%7D%3D0.0015)
Thus, the required probability is 0.15%
Answer:
28
Step-by-step explanation:
Mikhail's age:x
Gabrielle's age:2x
x+2x=84
3x=84
x=84÷3
x=28