George ate 2/3 of a container of Chinese food, Silvia ate1/5 of the same container of Chinese food. What fraction of the container of Chinese food did they eat all together?

13/15

Step-by-step explanation:

2/3, 1/5

10/15 + 3/15 - find a common denominator

13/15 - add fractions, simplify if possible (in this case it is already simplified)

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

what is the question? i am guessing you are looking for the area.

to find an area, you have to do length x width.

in this case, it would be 12 ft x 4 ft = 48 sq. ft