Answer: Cost of 1 soda = (Amount Juliana had- Cost of 3chips)/3
Step-by-step explanation: Cost of 3chips =$0.85×3= $2.55
Cost of 3 soda will be $6-$2.55
Cost of 1soda will be ($6-$2.55)/3
Answer:
The 95% confidence interval for the proportion of college students who get 8 or more hours of sleep per night is (0.133, 0.161).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
For this problem, we have that:
95% confidence level
So , z is the value of Z that has a pvalue of , so .
The lower limit of this interval is:
The upper limit of this interval is:
The 95% confidence interval for the proportion of college students who get 8 or more hours of sleep per night is (0.133, 0.161).
Answer:
1 1/4
Step-by-step explanation:
34÷710=?
Dividing two fractions is the same as multiplying the first fraction by the reciprocal (inverse) of the second fraction.
Take the reciprocal of the second fraction by flipping the numerator and denominator and changing the operation to multiplication. Then the equation becomes
34×107=?
For fraction multiplication, multiply the numerators and then multiply the denominators to get
3×104×7=3028
This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 30 and 28 using
GCF(30,28) = 2
30÷228÷2=1514
The fraction
1514
is the same as
15÷14
Convert to a mixed number using
long division for 15 ÷ 14 = 1R1, so
1514=1114
Therefore:
34÷710=1 1/4