Answer:
y = -x + 4
Step-by-step explanation:
Slope-intercept form of a line is the equation: y = mx + b
where m is the slope and b is the y-intercept
Step 1: Find the slope
Label the points that are given.
(-1,5) = (x1, y1)
(0, 4) = (x2, y2) (this is what they told us the y-intercept is)
The formula for slope is: m = (y2 - y1)/(x2 - x1)
The slope for this problem is
m = (4 - 5)/(0 - (-1))
m = -1/1 = -1
We now have m and b, so our equation is: y = -x + 4
Since both are equivalent to f(x), 4x-7 must equal 8
4x-7=8
Add 7 to both sides
4x= 15
Divide both sides by 4
x=15/4
Final answer: x=15/4
Answer:
20 minutes
Step-by-step explanation:
Method 1:
(0.75)/(0.25)=(1)/(x)
0.75*1.333333=1, so multiply 0.25 by 1.333333 to find the value of x!
0.25*1.333333=0.33333, or one-third of an hour, or 20 minutes.
Method 2:
(0.75)/(0.25)=(1)/(x)
Cross-multiply
0.75x=0.25
(0.25)/(0.75)=x
x=0.33333 hours
Answer:
Step-by-step explanation:
The equation to be solve is
4x−1/3=7/1
We can go about this by first adding 1/3 to both sides.
We then simplify the the right hand side of the equation
To find x, we multiply through by 1/4
Hence the solution set in the simplest form for the expression is
{x=11/2}
Answer:
x=31
Step-by-step explanation:
