15:3 is the only equivalent ratio to 20:4.
Hello There!
It is $60
Hope This Helps You!
Good Luck :)
- Hannah ❤
We know that
because of the Pythagorean trig identity
.
There's an app called photomath that would be useful for these kinds of problems!
To work out the decrease, do original amount - new amount and then take that answer and divide it by the original amount, and then multiply by 100.
So you would do:
36.24 - 30.80 = 5.44
5.44 ÷ 36.24 × 100 = 15% to the nearest percent.
