ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
The answer is 246:157.
Step by Step:
Group A:
First, figure out 1/5 of the people in group A. ( 615/5 = 123 )
Find 2/5 ( the amount of people who lost ) ( 123*2 = 246 )
Group B:
They received the same amount of fuel cards, so you take 526 - 369 ( 3/5 of the last group, or the winners, which is the amount of cards they received ) = 157.
The cost with just the 10$ off would be 39.98
Answer:
The correct answer will be option b
Step-by-step explanation:
We know that x = rcos( θ ), and y = rsin( θ ), so let's rewrite this polar equation.
r = 4( x / r ) + 2( y / r ),
r = 4x / r + 2y / r,
r = 4x + 2y / r,
r / 1 = 4x + 2y / r ( Cross - Multiply )
4x + 2y = r²
We also know that r² = x² + y², so let's substitute.
x² + y² = 4x + 2y,
x² - 4x - 2y + y² = 0,
Circle Equation : ( x - 2 )² + ( y - 1 )² = ( √5 )²,
Solution : ( x - 2 )² + ( y - 1 )² = 5
