Sum of two numbers is 62?
Let's call the two numbers
![a](https://tex.z-dn.net/?f=a)
and
![b](https://tex.z-dn.net/?f=b)
let's find two same numbers that would add up to 62: 31.
31 + 31 = 62
since it said the difference is 8, we have to add 4 to one number and subtract 4 from another.
31 - 4 = 27
31 + 4 = 35
Therefore, the two numbers following the given rules are 27 and 35
Answer:
19
Step-by-step explanation:
1/2*(5+x)*4=48
1 hr = 60 mins
10 hr = ... mins
600 mins + 39 mins = ... mins
639 mins + 24 sec=......mins
91 cm × 24 = ...
IDK what convention factors are tho...
Answer:
a. 9%
b. 0.01445
c. 12.02%
Step-by-step explanation:
n = 5 years
Return rates = 14%, –9%, 16%, 21%, and 3%
a. Arithmetic average return
![A= \frac{14-9+16+21+3}{5} \\A=9.00](https://tex.z-dn.net/?f=A%3D%20%5Cfrac%7B14-9%2B16%2B21%2B3%7D%7B5%7D%20%5C%5CA%3D9.00)
b. Historical variance (to 5 decimal places)
![V= \frac{\sum (X_i-A)^2}{n-1} \\V= \frac{(0.14-0.09)^2+(-0.09-0.09)^2+(0.16-0.09)^2(0.21-0.09)^2(0.03-0.09)^2}{5-1}\\ V=0.01445](https://tex.z-dn.net/?f=V%3D%20%5Cfrac%7B%5Csum%20%28X_i-A%29%5E2%7D%7Bn-1%7D%20%5C%5CV%3D%20%5Cfrac%7B%280.14-0.09%29%5E2%2B%28-0.09-0.09%29%5E2%2B%280.16-0.09%29%5E2%280.21-0.09%29%5E2%280.03-0.09%29%5E2%7D%7B5-1%7D%5C%5C%20V%3D0.01445)
c. Standard deviation.
![s = \sqrt{V} \\s= \sqrt{0.01445}\\s=0.1202 = 12.02\%](https://tex.z-dn.net/?f=s%20%3D%20%5Csqrt%7BV%7D%20%5C%5Cs%3D%20%5Csqrt%7B0.01445%7D%5C%5Cs%3D0.1202%20%3D%2012.02%5C%25)
Answer:
x=7
Step-by-step explanation:
6x-7 and 4x+7 are vertical angles and are thus equal. Then 6x-7 = 4x+7, or 2x = 14.
x = 7.