Answer:
5x+4y=49.50, where:
x is the price per sub
y is the price per drink
Step-by-step explanation:
From the information provided, you can say that the result of adding up the price per sub for the quantity plus the price per drink for the quantity is equal to 49.50 that is the total amount spent, which can be expressed as:
5x+4y=49.50, where:
x is the price per sub
y is the price per drink
Sorry about all the arrows, but hope this helps! Reels=$21 and rods=$80. All my work is shown.
Answer:
16
Step-by-step explanation:
1 gallon is equal to 8 pints.
2 gallons is equal to 16 pints.
Answer:
7.30
Step-by-step explanation:
You take 7 and then do 3/10 which is .30
You put them together and get 7.30
Hoped that helped!
Answer:
The 84% confidence interval for the population proportion that claim to always buckle up is (0.74, 0.80).
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 z-score that has a p-value of
.
They randomly survey 387 drivers and find that 298 claim to always buckle up.
This means that 
84% confidence level
So
, z is the value of Z that has a p-value of
, so
.
The lower limit of this interval is:

The upper limit of this interval is:

The 84% confidence interval for the population proportion that claim to always buckle up is (0.74, 0.80).