Hey there! :)
Alex's mother paid $17.64 for 12 gallons
1 gallon = 17.64 ÷ 12
17.64 ÷ 12 = 1.47
The price for 1 gallon is $1.47
Hope this helps :)
Answer:
18
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
<em>b</em> = 3
<em>y</em> = -3
5b - y
<u>Step 2: Evaluate</u>
- Substitute in variables: 5(3) - -3
- Multiply: 15 - - 3
- Subtract: 18
There's no way to answer that with the information given.
' Y ' might be -0.4x . Then, when ' x ' is 5, ' y ' is -2 .
OR, ' y ' could be x-14. Then, when ' x ' is 5, ' y ' is -9 .
There's just not enough given information to know.
Answer:
the third one
Step-by-step explanation:
area of a circle vs. it's diameter
Answer:
a. x = 40 wpm
b. MOE = 4.4 wpm.
c. If you were to create many more confidence intervals from many different random samples, you would expect 95% all of the confidence intervals to have centers and widths that include the true mean.
d. About 5% of the confidence intervals would not capture the parameter (true mean) you are trying to estimate.
Step-by-step explanation:
We have a 95% confidence interval for the mean with bounds 35.6 and 44.4.
This is estimated from a sample that, in this case, has a sample size of n=54.
The value of x, used to construct the interval, will be at the center of the interval. Then we can calculate the value of x as the average between the two bounds:
The margin of error is equal to the difference between x and any of the bounds:
c. If you were to create many more confidence intervals from many different random samples, you would expect 95% all of the confidence intervals to have centers and widths that include the true mean.
d. About 5% of the confidence intervals would not capture the parameter (true mean) you are trying to estimate.