Answer:
3 1/15
Step-by-step explanation:
8 2/3 - 5 3/5
find the LCD(least Common denominator)
8 10/15 - 5 9/15 = 3 1/15
let x=one number =
x-2= another number
x²- (x-2)²=20
x²-x²-4x+4=20
-4x=20-4
-4x=16
x=16/-4
x=-4
one number is -4
x-2
-4-2
=-6
the another number is -6
21:50
We need to find the ratio of 420 m to 1 km.
We know that,
1 km = 1000 m
So,
The ratio becomes,
So, the required ratio is 21:50.
2470
yeah-ya .... right?