Hello.
30% of $400 is $120. You can find this by multiplying .30 by 400.
Answer: 
THE GRAPH IS ATTACHED.
Step-by-step explanation:
The Slope-Intercept form of the equation of a line is:
Where "m" is the slope of the line and "b" is the y-intercept.
In this case, you have the first equation:
You can identify that:
If you convert the Mixed number to a Decimal number, you get:
Then, knowing the slope and the y-intercept, you can graph the line.
The second equation is:
Solve for "y":
Knowing that:
You can graph the line.
The point of intersection between both lines, is the solution of the system. This is:
Observe the graph attached.
3. is an obtuse angle and has a measure of 165 degrees
4. is an acute angle and has a measure of 55
Answer:Positive
Step-by-step explanation:
I just answerEd it
The value of x is 8 when y = 12 if variables x and y have proportional relationship.
According to the given question.
Variables y and x have proportional relationship.
⇒ y ∝ x
Let k be the constant of proportionality.
⇒ y = kx
Also, it is given that
y = 21 when x = 14
Substitute the value of y = 21 and x = 14 in y = kx to find the value of k.
21 = k(14)
⇒ k = 21/14
⇒ k = 3/2
Therefore, the value of x when y = 12
y = kx
⇒ 12 = (3/2)x
⇒ 12 × 2 = 3x
⇒ 24 = 3x
⇒ x = 24/3
⇒ x = 8
Hence, the value of x is 8 when y = 12.
Find out more information about proportional relationship here:
brainly.com/question/12917806
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