Because it may be the only number that is common to both numbers. Like the greatest common factor between 2 and 3 is 1.
Answer:
3/4
Step-by-step explanation:
Use
. From the bottom red point, you have to go up 3 and left 4 to get to the top point. That's your answer.
Hey!
You can make a proportion:
![\frac{2}{\$ 4.20} = \frac{5}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B%5C%24%204.20%7D%20%3D%20%5Cfrac%7B5%7D%7Bx%7D%20%20)
Cross multiply
![\$ 4.20 \times 5 = \$ 21](https://tex.z-dn.net/?f=%20%5C%24%204.20%20%5Ctimes%205%20%3D%20%5C%24%2021%20)
Divide by 2
![\$ 21 \div 2 = \$ 10.5](https://tex.z-dn.net/?f=%20%5C%24%2021%20%5Cdiv%202%20%3D%20%5C%24%2010.5%20)
<em>5 pounds would cost $10.50</em>
Good luck and hope this helps! :)
Okay. Commutative property of Multiplication was used to rewrite the problem. The order moves around, so it's definitely not associative, as the numbers would be in the same order, but parenthesis in different places. It's without a doubt not identity or zero property, and it does not have to do with addition at all. The answer is definitely Commutative property of Multiplication.
1 Ampere = 1 Coulomb of charge per second
2.5 A = 2.5 C of charge per second
Time to deliver 3.5 C of charge = (3.5 C) / (2.5 C / sec)
Time = (3.5 / 2.5) (C / C-sec)
Time = 1.4 sec
A current of 2.5 A delivers 3.5 C of charge <em>in 1.4 seconds.</em>