A third grade class had a spelling bee with 6-letter and 7-letter words. They used 30 words that had a total of 190 letters. Which system of linear equations represents the problem?
A.7x+6y=30
x+y=190
B.7x+6y=30
x+y=30
C.6x+7y=160
x+y=30
D.6x+y=30
x+7y=190

Question

anonymous · Answer

x = 6letter
y = 7letter
x + 7 = 30
6x + 7y = 190
D

anonymous · Answer

No, Not D

anonymous · Answer

C, but replace the 160 with 190, I guess that was your mistake.

anonymous · Answer

C.6x+7y=160
x+y=30