Answer:
65 ounces
Step-by-step explanation:
Number of dogs = 4
Each day, they ate 13/4 pounds of food
1 pound = 16 ounces
If 4 dogs eat 13/4 pounds of food
1 dog will eat x pounds of food
1 dog will eat = (1 * 13/4) / 4 = 13 /16
1 dog will eat 13 / 16 pounds of food each day.
1 pound = 16 ounces
13 / 16 pounds = y ounces
y = (13/16 * 16) / 1
y = 13 ounces
Each dog eats 13 ounces of food daily.
In five days, each dog will eat 13 * 5 = 65 ounces of food.
Ok, so rembmer some basica exponential rules and some fraction rules
(ab)/(cd)=(a/c)(b/d)
and
so
second-period class average:
55+70+450+480+170+270+95 = 1590
1590/20 = 79.5
sixth-period class average:
65+225+480+595+270+190 = 1825
1825/20 = 91.25
on average, students in the sixth period class scored higher
Given:
To find:
The value of given expression by using the Laws of Exponents.
Solution:
We have,
Using the Laws of Exponents, we get
![[\because a^ma^n=a^{m+n}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20a%5Ema%5En%3Da%5E%7Bm%2Bn%7D%5D)
![[\because \left(\dfrac{a}{b}\right)^n=\dfrac{a^n}{b^n}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Cleft%28%5Cdfrac%7Ba%7D%7Bb%7D%5Cright%29%5En%3D%5Cdfrac%7Ba%5En%7D%7Bb%5En%7D%5D)
Therefore, the value of given expression is 
.
