Answer:
49, 37
Step-by-step explanation:
Let one number be x and other be y.
According to the first condition:
x + y = 86.....(1)
According to the second condition:
x = y + 12..... (2)
Substituting x = y + 12 in equation (1)
y + 12 + y = 86
2y = 86 - 12
2y = 74
y = 74/2
y = 37
x = y + 12
x = 37 + 12
x = 49
Thus, the two numbers are 49 and 37
Since 9 is 3², each digit in base nine takes two digits in base 3.
2₉ = 02₃
6₉ = 20₃
7₉ = 21₃
1₉ = 01₃
Putting it together
2671₉ = 2202101₃
The average is the arithmetic mean of all the observations of a set of numbers. The number of times Brandon rolls above the average is 7.
<h3>What is average?</h3>
The average is the arithmetic mean of all the observations of a set of numbers. it is found by dividing the sum of all the observations of the set by the number of observations in the set.

In order to know the number of times Brandon rolls the dice above the average, we first need to calculate the average of the twenty rolls.
The average of the 20 times dice rolls,


Thus, the average of the 20 rolls of the dice is 4.
Now, the number of times the result of the dice roll is above 4(x>4) is 7.
Hence, the number of times Brandon rolls above the average is 7.
Learn more about Average:
brainly.com/question/2426692
Answer: 17 nickels, 8 dimes
Step-by-step explanation:
Since we are given system of equations, we can use elimination method to find n or d. First, let's eliminate n. To do so, we need to make sure they are equal to each other. Then, we would have to multilpy the second equaiton by 0.05.
0.05N+0.1D=1.65
0.05N+0.05D=1.25
Now, we can subtract the 2 equations.
0.05D=0.4
D=8
Now that we know the number of dimes, we can plug it into any of the equations to find nickels.
N+8=25
N=17
There are 17 nickels and 8 dimes.
Answer:
Yes it is.
Step-by-step explanation: