#1

#3**+2 **

urvw! I'll explain how I've done it.

cost of 1 pencil = 20 / 40 = 0.50

cost of 1 eraser = 20 / 25 = 0.80

cost of 1 bookmark = 20 / 80 = 0.25

cost of 1 complete set = 0.5 + 0.80 + 0.25 = 1.55

20 / 1.55 ≈ 12.9

Guest May 20, 2021

#4**+1 **

Answer: 12 complete sets.

Solution:

1. Find each cost of a pencil, eraser, and bookmark.

Pencil = 0.5 ($20 / 40)

Eraser = 0.8 ($20 / 25)

Bookmark = 0.25 ($20 / 80)

2. Find cost of a complete set (x) by adding each costs.

x = 0.5 + 0.8 + 0.25

x = 1.55

So:

number of complete sets = 20 / 1.55

= 12.90

Since .90 is not whole, only 12 is considered.

Hope this helps!

Tgfromthe4
May 20, 2021