Answer:
20/7 dollars per hour
Step-by-step explanation:
He pays 10 dollars per 3 1/2 hours. To find the unit rate, we divide the two.
10 / (3 1/2) =
10 / (7/2) =
(10/1) x (2/7) =
20/7
Answer:
In this case, "this expression" is not present, so you cannot get an answer from anyone.
Answer:
Step-by-step explanation:
given that we are interested in finding out the proportion of adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt.
Sample size = 765
Favour = 322
a) The population is the adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt
b) The parameter being estimated is the population proportion P of adults in the United State who cannot cover a $400 unexpected expense without borrowing money or going into debt.
c) point estimate for proportion = sample proporiton = ![\frac{322}{765} \\=0.4209](https://tex.z-dn.net/?f=%5Cfrac%7B322%7D%7B765%7D%20%5C%5C%3D0.4209)
d) We can use test statistic here as for proportions we have population std deviation known.
d) Std error = 0.01785(![\sqrt{\frac{pq}{n} }](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7Bpq%7D%7Bn%7D%20%7D)
Test statistic Z = p difference / std error
f) when estimated p is 0.50 we get Z = -4.43
g) Is true population value was 40% then
Z = 1.17 (because proportion difference changes here)
Hello,
Your answer: 748.52
Your Explanation: Find the number in the hundredth place 11 and look one place to the right for the rounding digit 88. Round up if this number is greater than or equal to 55 and round down if it is less than 55.
748.52 is your answer
Hope this helps
-HotTwizzlers