Answer:
should be 112
Step-by-step explanation:
You take both 12 and 14 and multiply. Then, take 8 and 7 and multiply. Take 168 and subtract 56,and there's your answer
Answer:
Step-by-step explanation:
step 1
Find the slope of line L
we know that
If two lines are perpendicular, then their slopes are opposite reciprocal
In this problem we have
Isolate the variable y
The slope of the given line is
so
The slope of the Line L is
step 2
Find the x-intercept of the line
The x-intercept is the value of x when the value of y is equal to zero
so
For y=0
The x-intercept is the point (5/2,0)
step 3
Find the equation of the line L
Find the equation of the line in point slope form
we have
substitute
Convert to standard form
AX +By+C
where
A is a positive integer
B and C are integers
Multiply both sides by 4
To answer this, set up a system of equations. What we know is that
5x + 2y = 100
And...
x+y=38
x represents the unknown number of 5 points questions
y represents the unknown number of 2 point questions
In my opinion the easiest way to solve this is to use substitution (that is when you find out the value of one variable, either x or y, and substitute that value as the variable).
So,
x+y=38
Subtract x from both sides
y=38-x
Now, plug (38-x) in as y in the other equation.
5x + 2(38-x) = 100
5x + 76-2x= 100
3x+76=100
3x=24
x=8
Now that you know that x=8, you can solve for y.
5x+2y=100
5(8)+2y=100
40+2y=100
2y=60
---- ------
2 2
y=30
X=8
Y=30
There are 8 five point questions on the test and 30 two point questions on the test
Answer:
{y | y = -9, -3, 0, 5, 7}
Step-by-step explanation:
i think thats the anwer
