Answer:
(a)Food-12%
9b)Transportation-17%
Step-by-step explanation:
In the Year 2000
Therefore:
(a)Percentage of the average household income in 2000 was spent on food
(b)Percentage of the average household income in 2000 was spent on transportation
Answer:
Proportion states that the two fractions or ratios are equal
Given the equation:
By cross multiply we get;
Using distributive property;
Subtract 0.4 from both sides we get;
Subtract 1.5x from both sides we get;
Divide both sides by 0.1 we get;
Simplify:
x = 56
Therefore, the value of x that satisfy the equation is, 56
Answer:
0.3745
Step-by-step explanation:
Data
mean (): 80
standard deviation (): 4
Normal distribution table is in figure attached .
Z = (85 - 80)/4 = 1.25
Area below curve = 0.3944
Z = (82 - 80)/4 = 0.5
Area below curve = 0.0199
Proportion of exam scores between 82 and 85?
0.3944 - 0.0199 = 0.3745
