Answer:
Step-by-step explanation:
In a World Atlas study, 10% of people have blue eye color. Lane decided to observe 29 people and she concluded 5 people had blue eyes. Calculate the z-score
Given that :
Sample size (n) = 29
Number of people with blue eyes (x) = 5
Proportion (p) = 10% = 0.1
Using the relation :
Z = (p" - p) / sqrt(pq/n)
Recall : q = 1 - p = 1 - 0.1 = 0.9
p" = x / n = 5 / 29 = 0.1724137
pq = 0.1 * 0.9 = 0.09
Hence,
Z = (0.1724137 - 0.1) / sqrt(0.09/29)
Z = 0.0724137 / 0.0557086
Z = 1.2998657
1. x-2(2x-3.5)=-14
x-4x+7=-14
-3x=-21
x=7
2. y=2(7)-3.5
y=14-3.5
y=10.5
hope this helps!
Answer:
Step-by-step explanation:
x=1 y=3
Answer:
30 lb/pounds
Step-by-step explanation:
used an online conversion
Answer:
6 gallons of punch makes her recipe.
Step-by-step explanation:
Given:
Quarts of ginger ale (g) = 6
Quarts of lemonade (l) = 8
Quarts of raspberry (r) = 10
Therefore, the total volume of fruto punch is equal to the sum of the volume of each of its ingredients.
So, Total volume = 
Total volume = 6 + 8 + 10 = 24 quarts
Now, we know that,
1 quart = 0.25 gallons
Therefore, from unitary method,
24 quarts = 24 × 0.25 = 6 gallons of punch
Therefore, 6 gallons of punch makes her recipe.