Answer:
what do u need help with?
Step-by-step explanation:
For example, exc. 15.
x + y = 10 and 6/x = 9/y; You need y!
=> x = 10 -y and 9x = 6y => 9(10-y) = 6y => 90 - 9y = 6y => 15y = 90 => y = 6.
Answer:
See below.
Step-by-step explanation:
a.
O is the origin, so its abscissa is 0. O: 0
The only point 4 units from O is A, so A: 4
Point C has a positive abscissa like A.
Points B and C have opposite abscissas. The only opposites are -3 and 3, but C is positive, and B is negative.
B: -3
C: 3
D: -4.5
E: -6
M = (4 + (-6))/2 = -1. M: -1
b.
OB = |0 - (-3)| = |3| = 3
DA = |-4.5 - 4| = |-8.5| = 8.5
B = 7/8(A-9)
first you must distribute
B = 7/8A -7 7/8
add over the -7 7/8
B + 7 7/8 = 7/8A
now divide both sides by 7/8
B+7 7/8
----------- = A
7/8
15% / 100% = 0.15
$140 x 0.15= $21.00
Typical tip would be $21.00
