Your answer is C
hope it helps
Answer:
B.
Step-by-step explanation:
It starts of with -4 degrees and it says that after an hour the temperature has increased by +4 which results in 0 when summed up.
The selling price of 18 shirts is given by g(f(18))
g(f(x))= 5.f(x) + 6= 5[(5/6)x+5]+6=(25/6)x+25+6
g(f(x))=25/6)x+25+6
g(f(18))=25/6).18+25+6=106
the answer is 106
Answer:
Adult = $7
Kids = $4
Step-by-step explanation:
Before we can find the price of the tickets, we first need to create expressions that can be used to explain the prices.
Let x = Price of kids tickets
Let y = Price of adults tickets
For this week the expression is:
3x + 9y = 75
For the last week the expression is:
8x + 5y = 67
Now to be able to find the value of x or y, we can use the Solving Linear Equations by Multiplying First Method.
3x + 9y = 75
8x + 5y = 67
Now we need to remove either the x or y by multiplying the whole expressions by a certain number.
8(3x + 9y = 75)
24x + 72y = 600
3(8x + 5y = 67)
24x + 15y = 201
Now that we have our equations and we can eliminate the x by subtracting both expressions.
24x + 72y = 600
<u>- 24x + 15y = 201</u>
57y = 399
To find the value of y, we divide both sides by 57.
y = 7
Now that we have the value for y, we simply substitute the value in any of our expressions.
3x + 9y = 75
3x + 9(7) = 75
3x + 63 = 75
3x = 75 - 63
3x = 12
Now we divide both sides by 3 to find the value of x.
x = 4
So the ticket prices are:
Adult = $7
Kids = $4
Answer:
y equals three sevenths times x plus 3
Step-by-step explanation:
Given the information:
- points going up from about zero comma negative 3
<=> Let A (x1, y1) = (0, -3)
- to the right to about 7 comma zero
<=> Let B (x2, y2) = (7, 0)
As we know, the line of best fit is a linear equation that represent the data with the standard form:
y = mx + b where:
- m is the slope
- b is the the y-intercept when x = 0
For a line that goes trough the points (x1, y1) and (x2, y2), the slope is
m =
In this situation, we have:
m = =
=> y = x + b.
Because the line goes through A (0, 3)
=> 3 = *0 + b
<=> b =3
=> y = x + 3
So we choose y equals three sevenths times x plus 3