Answer:
A)6x-18, B)They are not equal, since 6xx18 is not equal to 6x-9
Step-by-step explanation:
2(3x-9) = 2(3x)-2(9) =6x-18.
Answer:
A. x = 4
Step-by-step explanation:
Hope this helps
Answer: 4 paddles
Step-by-step explanation:
Mr. Jones buys the paddle for $35 and sells at 180% of the purchase price:
= 35 * 180/100
= $63
For the number of paddle sales to be at least $250, he should sell:
= 250/63
= 3.97
= 4 paddles
For two lines to be perpendicular to one another their slopes must be negative reciprocals of each other, mathematically:
m1*m2=-1
Since the slope of y=3x-10 is 3, the perpendicular line must have a slope of:
3*m=-1, m=-1/3
So the other line so far is:
y=-x/3+b, now you use the point (9,-7) to solve for the y-intercept, or "b"...
-7=-(-7)/3+b
-7=7/3+b
-7-7/3=b
(-21-7)/3=b
b=-28/3
so the perpendicular line to y=3x-10 passing through the point (9,-7) is:
y=(-x-28)/3
