D 80
32/40 *100
Precent proportions
32/x = 40/100
Cross multiply
Answer:
---- in dollars
---- in cents
5 dollars 94 cents
Step-by-step explanation:
Given
Pears

per pound
Grapes

per pound
Required
Determine the amount paid for the fruit in dollar and cents
First, we need to calculate the amount paid for each fruit.
This is calculated by multiplying the amount per pound by the number of pounds bought.
For Pears:

Convert fraction to decimal


For Grapes

Convert fraction to decimal


Next, we add both amounts together to get the total amount spent in dollars.



Multiply by 100 to convert this amount to cents


And it can be represented as dollars and cents as:
5 dollars 94 cents
Answer:
We need to conduct a hypothesis in order to determine if the mean is greater than specified value, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
For this case the significance is 1%. So we need to find a critical value in the normal standard distribution who accumulates 0.99 of the area in the left and 0.01 in the right and for this case this critical value is:

Step-by-step explanation:
Notation
represent the sample mean
represent the standard deviation for the population
sample size
represent the value that we want to test
represent the significance level for the hypothesis test.
z would represent the statistic (variable of interest)
State the null and alternative hypotheses.
We need to conduct a hypothesis in order to determine if the mean is greater than specified value, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
For this case the significance is 1%. So we need to find a critical value in the normal standard distribution who accumulates 0.99 of the area in the left and 0.01 in the right and for this case this critical value is:

the answer is b. 30 hope this helps
The correct answer is 41/25