The slope is given by
... m = ∆y/∆x = (76 -70)/(46 -50) = 6/-4 = -3/2
Given line ax+by=c and point (h, k), the perpendicular line through (h, k) can be written as
b(x-h) -a(y-k) = 0
In order for this to be in standard form, it must be rearranged somewhat, and any common factors removed.
We can start with
20(x-8) -5(y-3) = 0
4x -32 -y +3 = 0
4x -y = 29
The standard-form equation of the desired line through (8, 3) is
4x -y = 29
Answer:
someone could buy 2 more paperback books than hardcover with 3 dollars
Step-by-step explanation:
2250= plastic beads
6750= metal beads
STEP 1:
Find total number of beads on clearance
= 2250 + 6750
= 9000 total beads on clearance
STEP 2:
set a ratio; number of plastic beads on clearance to the total number of beads on clearance is what number out of 100
x= percent out of 100
2250/9000= x/100
cross multiply
(9000*x)= (2250*100)
9000x= 225,000
divide both sides by 9000
x= 25%
CHECK:
multiply total number of beads by 25%
= 9000 * 25%
= 9000 * 0.25
= 2250 number of plastic beads
ANSWER: 2250 beads is 25% out of the total number of beads on clearance.
Hope this helps! :)