Do a proportion
10/75= 1/x
Cross multiply and divide
75 x 1= 75
75 divided by 10 is 7.5
Answer is 7.5 pencils per dollar
Answer:
x=-1
Step-by-step explanation:
-2x+3=-3x+2
-2x+3x=2-3
x=-1
Answer:
Two variable linear inequality
Step-by-step explanation:
Two variable linear inequality
slope = (y2-y1)/(x2-x1)
m =(-2-7)/(8-0)
m =(-9/8)
slope is -9/8
the y intercept is 7 (0,7)
y = mx +b
y = -9/8 x+7
Answer: y = -9/8x +7
They way to find the y-intercept from two points is to first find the slope, which can be derived from the formula 
.
Then, you can plug in one of the two points 
or 
into the formula y=mx+b to solve for b, which is your y-intercept.
