Respuesta :
C, D, and E all represent parts of the situation.
A does not, because x is actually 55 smaller than y, which is why both D and E work.
B does not because it's doubling the sum of x = y, but the description says to double x and then add y (which is why C works).
A does not, because x is actually 55 smaller than y, which is why both D and E work.
B does not because it's doubling the sum of x = y, but the description says to double x and then add y (which is why C works).
x and y are the numbers
y>x
sum (addition) of twice a number (2x) and larger number (y) is (=) 145
2x+y=145
difference between them is 55 (y is bigger so it would be x is subtracted from y)
y-x=55
so the equations are
2x+y=145 and
y-x=55
we could add x to both sides in the 2nd equation to obtain
y=x+55, but that doesn't really represent that the difference is 55, though they are the same euation
so I would say C and D only
y>x
sum (addition) of twice a number (2x) and larger number (y) is (=) 145
2x+y=145
difference between them is 55 (y is bigger so it would be x is subtracted from y)
y-x=55
so the equations are
2x+y=145 and
y-x=55
we could add x to both sides in the 2nd equation to obtain
y=x+55, but that doesn't really represent that the difference is 55, though they are the same euation
so I would say C and D only