Solve for x:
8 - 5 x = 2 x + 8
Subtract 2 x from both sides:
8 + (-5 x - 2 x) = (2 x - 2 x) + 8
-5 x - 2 x = -7 x:
-7 x + 8 = (2 x - 2 x) + 8
2 x - 2 x = 0:
8 - 7 x = 8
Subtract 8 from both sides:
(8 - 8) - 7 x = 8 - 8
8 - 8 = 0:
-7 x = 8 - 8
8 - 8 = 0:
-7 x = 0
Divide both sides of -7 x = 0 by -7:
(-7 x)/(-7) = 0/(-7)
(-7)/(-7) = 1:
x = 0/(-7)
0/(-7) = 0:
Answer: x = 0
2 pieces :)
Not sure if you wanted work but here is my explanation:
there are six pieces that she cut out, and she ate 1/3 of the six pieces,
1/3=2/6
since there are 6 pieces 1/3 would then equal 2 pieces. :)
Hope this helps:)
well, an hour has 60 minutes, that means 10+10+10+10+10+10 minutes.
we know she can do ½ mile in 10 minutes, so in an hour, she'll be doing
½+½+½+½+½+½ miles, and you know how much that is.
412 ÷ 20 = 20 boxes with 12 remaining.
Total boxes needed = 20 + 1 = 21
Answer: 21 boxes will be needed.
196 square miles
20 x 10 = 200
10 - 8 = 2 m
20 - 16 = 4 m
1/2 x 4 x 2 = 4 sq miles
200 - 4 = 196 sq mile