Step-by-step explanation:
First step:
Calculate a slope.
The formula of a slope:
The slope-intercept form of an equation of a line:
m - slope
b - y-intercept
We have the points (5, -4) and (-1, 8). Substitute:
Put the value of the slope and the coordinates of the point (5, -4) to the equation of a line:
<em>add 10 to both sides</em>
Finally:
The 7% sales tax on the $20.00 is $1.40. The 8% sales tax on the$20.00 is $1.60. So you will have to pay 20 more cents on a $20.00 buy. So the answer is B.
Answer: When f(x)=g(x) , x equal to -2 or -1
Step-by-step explanation:
2L+2W=157.5
L=W-30
2(W-30)+2W=157.5
2W-60+2W=157.5
+60 +60
4w=217.5
W=54.4(.37 rounded to nearest tenth)
L=24.4