Let x be the number of notebooks bought for $10. Let y = number of notebooks for $8
Then x + y = 6 and 10x + 8 y = 56
Now solve (:
A store sells small notebooks for $8 and large notebooks for $10. If you buy 6 notebooks and spend $56, how many of each size notebook did you buy?
my answer: 7 small notebooks and 5 large notebooks
is this right?
4 answers
If you only bought 6 notebooks, how do you get 7 and 5? You need to read the problems carefully.
x = 6-y
10x + 8y = 56
Substitute 6-y for x and solve.
x = 6-y
10x + 8y = 56
Substitute 6-y for x and solve.
Y=2 x=4
1-1 THEN ADD 3 TO 6 THEN WHAT YOU WILL HAVE.
THE AWNSER-
THE AWNSER-