Answer:
1.44
Step-by-step explanation:
You are trying to find what's the price per ounce which is the unit rate to find that out you.You first make a fraction then if it's money put it in the numerator ALWAYS and the 7 in the donomenater then make another fraction put 1 in the donomenater since you are trying to find the unit rate then you think 7 divided by what equals 1 and the answer is 7 because 7 divided by 7 equals 1 so now you know what to divide to 10.08 it's 7 so 10.08 divided by 7 equals 1.44.So the price per ounce is $1.44
Answer:
17.7 = 18 (when rounded)
Step-by-step explanation:
160 divided by 9 = the amount of trucks.
For this problem, the confidence interval is the one we are looking
for. Since the confidence level is not given, we assume that it is 95%.
The formula for the confidence interval is: mean ± t (α/2)(n-1) * s √1 + 1/n
Where:
<span>
</span>
α= 5%
α/2
= 2.5%
t
0.025, 19 = 2.093 (check t table)
n
= 20
df
= n – 1 = 20 – 1 = 19
So plugging in our values:
8.41 ± 2.093 * 0.77 √ 1 + 1/20
= 8.41 ± 2.093 * 0.77 (1.0247)
= 8.41 ± 2.093 * 0.789019
= 8.41 ± 1.65141676
<span>= 6.7586 < x < 10.0614</span>
