The answer is $362.5
Here is why:
17.625 x 100 = 1762.5 (what was purchased)
21.25 x 100 = 2125 (what it was worth when sold)
2125 - 1726.5 = 362.5 (profit)
If you have any questions feel free to let me know! :) Otherwise have a great day!
Answer:
Speed of river's current = 5 mph
Step-by-step explanation:
Let 'd' be the distance covered
Let x be the speed of the rivers current
Speed upstream = 15-x
speed downstream = 15+x
Time = distance / speed
time upstream =
time downstream =
the ferry trip upstream takes twice as long as its return trip downstream
=
divide both sides by d
=
cross multiply
Add 2x on both sideds
subtract 15 from both sides and divide by 3
x=5
Speed of river's current = 5 mph
Nina makes 11.25 per hour.
Step-by-step explanation:
Given,
Number of hours worked by Nina = 32 hours
Amount earned by Nina = 360
Let,
x represent the amount earned by Nina per hour.
Amount per hour * Number of hours = Amount earned
Dividing both sides by 32
Nina makes 11.25 per hour.
Keywords: variable, equation
Learn more about variables at:
#LearnwithBrainly
Answer:
At a 5% significance level we reject the Null hypothesis
Step-by-step explanation:
From the question we are told that:
Distance
Mean
Sample size
Sample mean
Standard deviation
significance level
Generally the Hypothesis is mathematically given by
Generally the equation for t test statistics is mathematically given by
Therefore P-Value from table
Therefore
At a 5% significance level we reject the Null hypothesis
Answer:
Area of Rectangle = length times width
lets say length = 2x-4
width = x+5
Note: you can switch these around, width could be 2x-4 and length could be x+5, it doesnt matter.
With that being said:
length * width = area
(2x-4)(x+5)=area