We can use substitution to solve for x then substitute the x value back into the original equation to solve for y...
5x + 2y = 7
y = x + 1
Since y = x + 1, we can substitute x + 1 for y in the first equation
5x + 2(x+1) = 7
5x + 2x + 2 = 7
7x + 2 = 7
7x = 5
x = 5/7
Now substitute 5/7 for x in either of the original equations
y = x + 1
y = 5/7 + 1
y = 1 5/7
Solution set is (5/7, 1 5/7)
X = adult tickets
y = child tickets
14.88 for adults
8.88 for children
14.88x + 8.88y = total for x amount of adult tickets purchased and y amounts of child tickets purchased.
Ans: 14.88x + 8.88y
It would cost you $187.20 to paint that
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The point-slope form the line which has the value of slope -5 and contains a point as A(2,-1) is (y+1)=-5(x-2).
<h3>What is point slope form?</h3>
The point slope form of a line is the expression of line which has a specified slope and passes through a point.
The point slope form is givne as,
(y-y₁)=m(x-x₁)
Here, m is the slope of the line, x₁ is the x coordinate of the point by which line passes and y₁ is the y coordinate of the same point.
The slope of a line is -5. This line contains the point A (2,-1). Thus, the point slope form is,
(y-y₁)=m(x-x₁)
(y-(-1))=-5(x-2)
(y+1)=-5(x-2)
Thus, the point-slope form the line which has the value of slope -5 and contains a point as A(2,-1) is (y+1)=-5(x-2).
Learn more about the point slope form here;
brainly.com/question/6497976
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Answer:
Output = 7
Step-by-step explanation:
Input value...is the value of x and the output value..is the value of y,
So the question is just saying that what is the value of y when x = 4
; 3(4) - 5
; 12 - 5
; y = 7...therefore the output value = 7
