[ Answer ]
$25 An Hour
[ Explanation ]
We already know the total amount he has right now. We also know how long he has worked at his job. To solve, we can use division.
Divide 1500 by 60
1500 / 60
= 25
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Answer:
$8
Step-by-step explanation:
$56 ÷ 7 hours = $8 per hour
Answer:
terms, 2x, 3y , x and 7,
like terms, 2x, 3y, x and 7
Coefficient. 2 is the coefficient of 2x and 3 is the coefficient of 2y 1 is the coefficient of x
Constant. 7
Step-by-step explanation:
Given:
Terms are the number of parts in the expression.
there are four terms 2x, 3y , x and 7,
Like terms are the part of the polynomials. 2x, 3y and x are like terms because they both have an x attached. 7 is like terms because they have nothing attached.
The number that are attached to variable is called Coefficient.
So In the term 2x the number 2 is a coefficient because it is attached to x similarly 3y the number 3 is a coefficient because it is attached to y
and in the term x the number 1 is a coefficient.
Constant are the numbers that are not attached to any variable and it is not change. Such as 7 is the constant term.
Margin of error is calculated using the following formula:
Margin error = Z-value*SD/Sqrt (N)
Where: Z -value at 95% confidence = 1.96; SD = Standard deviation = 10 minutes; N = Sample size; Margin error = 4 minutes
Substituting;
4 = 1.96*10/Sqrt (N)
Sqrt (N) = (1.96*10)/4 = 4.9
N = 4.9^2 = 24.01 ≈ 25
Therefore, 25 commuters will be selected at random to yield these results.
64 pi. Since the formula for the circumference of a cirlcle is: pi x diameter. The diameter of the circle would be 16. And the radius of that would be 8 since its half of 16. The formula to find the area is: pi x radius squared. So 8 squared pi would be 64 pi.