You are paying 15% of the original price because
50% + 35% = 85%
100% - 85% = 15%
I hope this helped :) :)
Set up a system of equations:
x + y = 9
1/x +1/y = 1/2
The easiest way to solve would be substitution.
x + y = 9 can be solved for y:
y = 9 - x
Then plug this into the second equation and solve for x:
1/x + 1/(9-x) = 1/2
(9-x) + x = x(9-x)/2
9 = (9x-x²)2
18 = 9x - x²
x² - 9x + 18 = 0
(x-6)(x-3) = 0
x = 6, 3
You can check your answer by plugging the two numbers back into both of the equations:
6 + 3 = 9
1/6 + 1/3 = 1/2
The two numbers are 6 and 3.
For the blue picture, use Pythagorean theorem. So 8.7^2 + x^2 = 32^2. Now solve for x and that’ll give you the missing side
Answer:
The length of the missing side b would be 16m
Step-by-step explanation:
first you would use the formula a2+b2=c2
12^2+b2=20^2
-take 12*12 and 20*20
144+b2=400
-subtract 144 from 400 in order to get b2 alone
b2=256
-take the square root of b and 256
b=16
Answer:
the one in the bottom is the graph in pretty sure
