Lisa has 5 more green marbles than blue marbles. She has a total of 40 green and blue marbles. Which system of equations represents this situation if x is the number of green marbles and y is the number of blue marbles?
A: {y = x+5
{x+y=40

B: {x=y+5
{x+y=40

C: {y=x+5
{y=x+40

D: {x = y + 5
{x=y+40

Question

Lisa has 5 more green marbles than blue marbles. She has a total of 40 green and blue marbles. Which system of equations represents this situation if x is the number of green marbles and y is the number of blue marbles?
A: {y = x+5
   {x+y=40

B: {x=y+5
   {x+y=40

C: {y=x+5
   {y=x+40

D: {x = y + 5
   {x=y+40

anonymous · Answer

.............she should buy some red marbles.

anonymous · Answer

green marbles = blue marbles + 5.
green marbles + blue marbles = 40.
substitute x and y. for 'green marbles' and 'blue marbles'

anonymous · Answer

b.

anonymous · Answer

How would it be b?  d makes alot more sense

anonymous · Answer

given:

x=green marbles
y=blue marbles

x=y+5  (since, green marbles is great than blue marbles   by 5)

x+y=40 (since the total number of marbles is 40)

equation:
x=y+5
x+y=40

anonymous · Answer

^ agree. mertsj, show working.

anonymous · Answer

"a total of 40 green and blue marbles" makes D wrong.

anonymous · Answer

tnx for the medal. .

anonymous · Answer

B.