Well, she drove 200 miles, at a pay of $0.60 per mile travelled.
<span>200 * 0.6 = 120 </span>
<span>She got payed $120 for her 200 miles traveled. </span>
<span>Since she gets payed $50 per day, and she got paid $1500 for her food and lodging, she traveled for 30 days as 1500/50 = 30 (Part C answer) </span>
<span>If you were to determine her total pay: </span>
<span>Using variables x for: number of days spent on trip </span>
<span>Y: number of miles traveled. </span>
<span>Total pay = 50x + 0.6y </span>
<span>If you'd rather have only the equation for the number of days spent on her trip: </span>
<span>X = (1620- 0.6(200))/50. (Part A answer) </span>
<span>Solving for x: </span>
<span>X = (1620 - 0.6(200))/50 </span>
<span>X = (1620 - 120)/50 </span>
<span>X = (1500)/50 </span>
<span>X = 30 (Part B answer)</span>
<span>94/54145 Would be your answer, hope this helps! :D</span>
Answer:
The 95% confidence interval for the difference is (-0.1888, 0.0202).
Step-by-step explanation:
Difference between proportions:
The distribution of the difference between two proportions has mean of the difference between these proportions and standard deviation is the square root of the sum of the variances. So
In a sample of 86 units made with gold wire, 68 met the specification
This means that:
In a sample of 120 units made with aluminum wire, 105 met the specification.
This means that:
Difference:
Confidence interval:
In which z is the zscore that has a pvalue of 
, with 
being 1 subtracted by the confidence level.
95% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
Lower bound of the interval:
Upper bound of the interval:
The 95% confidence interval for the difference is (-0.1888, 0.0202).
Answer:
—5/4 or —1 1/4
Step-by-step explanation:
3x – 5 = 5x + 2x
Collect like terms
—5 = 5x + 2x — 3x
—5 = 4x
Divide both side by the coefficient of x i.e 4
x = —5/4 or —1 1/4
Subtract 5 from each side. Use MAN strategy to determine that x = 5 and x = -1.
