Answer: The first one is = 27.5
1/3 * 25 * 3.3 = 27.5
Its the same thing because your just switching the order which doesn't matter when your adding or multiplying
You would solve this with simultaneous equations, so if we write it as:
5n + 2p = 9
3n + 2p = 6
(subtract)
2n = 3
÷ 2
notebooks = 1.5
Now you would substitute it in:
(3 × 1.5) + 2p = 6
4.5 + 2p = 6
- 4.5
2p = 1.5
÷ 2
pens = 0.75
So your final answer is notebooks are $1.50 and pens are $0.75, I hope this helps!
Well 58.19 divided by 2.74 will equal 21 and random number after decimal so it will be 21 days