There are 81 rolls of ribbon in each of the 9 boxes. I can’t see all the options so I hope this helps!
What i would do is multiply $7500 by 10. because it asks what his account will be worth in 10 years so just multiply $7500 by 10.
First, let's convert the mixed number 1 1/2 to the improper fraction 3/2. We're given that it takes 3/2 days to install 3/5 of a fence. We're looking for how long it takes to install one whole fence - or 5/5 of a fence. To determine that, let's first find out how long it takes to install <em>1/5 of a fence</em>, and then multiply that quantity by 5 to obtain our answer.
If it takes 3/2 days (3 half-days) to install 3/5 of a fence (3 fifths of a fence), then it makes sense that it would take <em>1/2 </em><em>day</em> (<em>1 </em>half-day) to install <em>1/5</em> of a fence (<em>1 </em>fifth of a fence).
If it takes 1/2 day to install 1/5 of a fence, then it should take 5 times that amount of time to install all 5/5 of it, or 5 * (1/2) = 5/2 days, or 2 1/2 days as a mixed number.
Original bread is 10 X 12.5 X 2. so if you cut pieces 2 X 2.5X 2 you would take 1o inches divided by 2 inches = 5 pieces (long). 12.5 inches divided by 2.5 inches wide = 5 pieces (wide). The 2 inches high cancels itself out because the bread is 2 inches high to begin with. Therefore 5 X 5 = 25 or 25 total pieces of banana bread at 2" x 2.5" x 2".
Take -5x + 3x = -2x
because there is a -3x and a 3x they cancel each other out.
and the -17 is left
-2x = -17
divide -2 by -17 = 8.5
