Answer:
<em>3n; 2 nickels and 6 quarters</em>
Step-by-step explanation:
"Peggy had three times as many quarters as nickels."
Whatever number of nickels she has, the number of quarters is 3 times as many.
Since she has n nickels, she has 3 times n quarters.
The number of quarters is 3n.
A nickel is worth $0.05, so n nickels are worth 0.05n.
A quarter is worth $0.25, so 3n quarters are worth 0.25(3n).
0.05n + 0.25(3n) = 1.60
0.05n + 0.75n = 1.6
0.8n = 1.6
n = 2
She has 2 nickels.
3n = 3(2) = 6
She has 6 quarters.
Answer:
The marked price of an article is Rs. x, and selling price is Rs. y
Price difference = Rs. (x−y)
Now, on Rs. x, there is a discount of Rs. (x−y)
Thus, on Rs. 100, there will be a discount of Rs.
x
(x−y)
×100%.
1. 6a-2b+4
2. 3a-3b+9
3. -2x-8=-10
-2x=-2
X=1
4. -x+4=5
-x=1
X=-1
The meaning of the constant is the average temperature at the equator statement (A) is correct.
<h3>What is the line of best fit?</h3>
A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.
We have a line of best fit for the data:
y = 90 - z
Here, x is measured in degrees of latitude and y is measured in degrees of Fahrenheit.
When z = 0
y = 90
Which shows the average temperature at the equator.
Thus, the meaning of the constant is the average temperature at the equator statement (A) is correct.
Learn more about the line of best fit here:
brainly.com/question/14279419
#SPJ1
Answer:
6 and -6
Absolute value mans the distance a number is away from 0.
