36 ounces of solution A
144 ounces of solution B
Distance Formula: d = √(x₂ - x₁)² + (y₂ - y₁)²
(-6 , 2) and (8 , 10)
x₁ y₁ x₂ y₂
d = √(8 - (-6))² + (10 - 2)²
d = √(8+6)² + (10 - 2)²
d = √(14)² + (8)²
d = √(196) + (64)
d = √ 260
d = 2√65
I think this is right, but I am not sure.
I know it says instant mirror don't worry about that.
The rate of change refers to the slope
When we have a coat with a 20% discount we only pay the remaining 80%.
This 80% equals £220
The original price was 100%
First we find out the value of 1%:
220 / 80 = £2.75
Finally we want to know the total 100% so find multiply our 1% by 100
£2.75 * 100 = £275
So the original price was £275