SOLUTION: You are collecting pairs of socks and toothbrushes for charity. After d days, you have collected (4d + 5) pairs of socks and (3d + 7) toothbrushes. How many more pairs of sock

Algebra ->  Human-and-algebraic-language -> SOLUTION: You are collecting pairs of socks and toothbrushes for charity. After d days, you have collected (4d + 5) pairs of socks and (3d + 7) toothbrushes. How many more pairs of sock      Log On


   



Question 1013319: You are collecting pairs of socks and toothbrushes for charity. After d days, you have collected (4d + 5) pairs of socks and (3d + 7) toothbrushes.
How many more pairs of socks than toothbrushes have been collected on day 7?

Found 2 solutions by fractalier, josmiceli:
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
You would merely subtract expressions, and get
(4d + 5) - (3d + 7) = (d - 2) more pairs of socks than toothbrushes...
Thus on day 7, 7-2 = 5 more pairs of socks...

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
On day 7 pairs of socks collected are:
+4d+%2B+5+=+4%2A7+%2B+5+
+4d+%2B+5++=+33+
On day 7 toothbrushes collected are:
+3d+%2B+7+=+3%2A7+%2B+7+
+3d+%2B+7+=+28+
----------------
+33+-+28+=+5+
5 more pairs of socks than toothbrushes
were collected on day 7