Apiece of ribbon is cut into two shorter pieces in the ratio 2.8: 1.25. the divfference in the length of the two shorter pieces is 80.6 centimmeters. what is the length of the original piece of ribbon?

210.6 cm

Step-by-step explanation:

Given that a piece of ribbon is cut into two shorter pieces in the ratio 2.8:1.25.

So that means length of the first smaller piece = 2.8x

and length of the second smaller piece = 1.25x

Then difference between their lengths = 2.8x-1.25x = 1.55x

Given that difference is equal to 80.6 centimeters then we get

1.55x=80.6

or x= 80.6/1.55

or x=52

then length of the original piece = 2.8x+1.25x

= 2.8*52+1.25*52

= 145.6+65

= 210.6 cm

step-by-step explanation:

the expected value of the random variable : 0, 1 and 2

step-by-step explanation: