Answer:
p ≤ 8
Step-by-step explanation:
Given the following :
Maximum weight elevator can hold ≤ 1800
Weight of delivery person and packages = 520 pounds
Average weight of a person = 160 pounds
Inequality to show how many additional people elevator can hold?
(weight of delivery person and packages + average weight of persons * number of persons) ≤ 1800
Let p = number of persons 
(520 + 160p) ≤ 1800
160p ≤ 1800 - 520
160p ≤ 1280
p ≤ 1280 / 160
p ≤ 8
 
        
             
        
        
        
-2x^2+8x+5 is the standard form
        
             
        
        
        
Answer:
4 or 4.75
 or 4.75
Step-by-step explanation:
first we're going to convert the number into improper fractions.
7 =
=  and 2
 and 2 =
= 
For subtracting it is suitable to adjust both fractions to an equal denominator, so we're going to multiply  x2, it'll equal the same number.
x2, it'll equal the same number.
So now we have  -
- , 30-11= 19.
, 30-11= 19.
 simplified is, 4
 simplified is, 4 .
. 
As you can see I also added 4.75 as an answer, that's if the answer must be a decimal.
I hope this helps you!