Answer:
x = 33
y = 41
Step-by-step explanation:
GIven
x: number of nickels
y: number of quarters
A nickel = $0.05
A quarter = $0.25
then we have the system of equations
0.05*x + 0.25*y = 11.90
x + y = 74
Which can be solved applying any of known methods. Then, the solution is
x = 33
y = 41
hope this was helpful.
Answer:
GRAPH D
Step-by-step explanation:
BECASUE IT IS THE WRIGHT ANSWER
Answer:


Step-by-step explanation:
For this case we have the following data given:
2.3 3.1 2.8
1.7 0.9 4.0
2.1 1.2 3.6
0.2 2.4 3.2
Since the data are assumedn normally distributed we can find the standard deviation with the following formula:

And we need to find the mean first with the following formula:

And replacing we got:

And then we can calculate the deviation and we got:

<u>Answer:</u>
The marked price of the article is 22,600
<u>Explanation:
</u>
Given, selling price of an article SP = Rs. 18080
To calculate marked price MP, the formula used is

Discount D = 20%
Substituting the given values
SP = 
18080 = 


MP = Rs. 22,600
Therefore the marked price of the article is 22,600
The first one, the other graphs do not pass the Vertical line Test. they intersect at more than one point on the graph