Answers:
a. 0.5 people
b. 10 spring rolls will serve 5 people, 16 spring rolls will serve 8 people, 25 spring rolls will serve 12.5 people
c. n/2 or 1/2 of n
Step-by-step explanation:
if 6=3p, p representing each person, then we find that 2 spring rolls serve 1 person, so 1 spring roll serves 0.5 people!
if 1=0.5p, then p is 1/2 of the amount of spring rolls.
Divide each of the amount of spring rolls by 2.
10=5p
16=8p
25=12.5p
n=n/2
The variable p is important, as to show that it's the amount of people.
Hope this helps!
--Applepi101
Answer:
(2,5.5)
Step-by-step explanation:
<span>b. 4+12÷2=4+6=10
c. (20–5)•3=15•3=45</span>
Answer:
B. 95% confident the average concentration of PCBs in the water supply is between 2.9 ppb and 3.5 ppb
Step-by-step explanation:
You are given the total number of samples, the concentration of lead, and the standard deviation. The standard deviation represents how inaccurate the estimation of the concentration of lead in the drinking water. This means that there can only possibly be a 0.3 ppb error in the estimation. 3.2-0.3=2.9, and 3.2+0.3=3.5
