Which system of equations is equivalent to the following system? x + y = 20
O2 y = 14
-16-y-80
O2 4y = 54
-Exy=-20
O exBy=-28
x+y=20
0-2x - 4y = 14
2x+y = 20

the answer is a

step-by-step explanation:

56

step-by-step explanation:

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation: