Answer:
.2
Step-by-step explanation:
When you do 64/80 you get 0.8 which means that the percent decrease is .2
This should be recognized as the difference of perfect squares which is of the form:
(a^2-b^2) and the difference of squares always factors to:
(a-b)(a+b) in this case:
(3x-8)(3x+8)
I think it’s AC, but I may be wrong
The answer i thinkkk would be,
x < -1
Answer:
11 1/4- pounds hamburgers can be made from 2 and 3/4 pounds of ground beef.
Step-by-step explanation:
Here, the amount of beef uses in 1 hamburger = 1/4 pound = 0.25 pounds
Total amount of beef available = 2 3/4 pounds
Now, solving the mixed fraction,we get

So, the total available beef = 2.75 pounds
Now, 
= 
So, <u>the total number of hamburgers made = 11 </u>
Hence, 11 1/4- pounds hamburgers can be made from 2 and 3/4 pounds of ground beef.