Answer:
The salesman sold 56 large appliances.
Step-by-step explanation:
$57,400 - $35,000 = $22,400
He made $22,400 off the appliances.
To find how many appliances, you can divide 22,400 by 400.
The equation should be ($57,400 - $35,000)/400 = x
Here x represents the amount of large appliances sold. If you run the equation, the answer you should get is 56.
For points (x1,y1) and (x2,y2)
the slope is (y2-y1)/(x2-x1)
(3,4) and (6,6), slope is (6-4)/(6-3)=2/3
(4,-4) and (2,-7), slope is (-7-(-4))/(2-4)=(-7+4)/(-2)=-3/-2=3/2
for ax+by=c
slope=-a/b
3x+4y=12
slope=-3/4
Answer:
Step-by-step explanation:
slope of CD=(1+2)/(8-4)=3/4
slope of line ⊥ to CD=-4/3
eq. of line with slope -4/3 and passing through (4,-2) is
y-y1=m(x-x1)
y+2=-4/3(x-4)
3y+6=-4x+16
3y=-4x+16-6
3y=-4x+10
or 4x+3y-10=0
this is the eq. of line in the form ax+by+c=0
or in slope form
y=-4/3 x- 10/3