Answer:
4 miles
Step-by-step explanation:
Let
x ----> the time to returned back biking in hours
d ---> the distance in miles
s ---> speed in miles per hour
Remember that
The speed or rate is equal to divide the distance by the time

The distance is equal to multiply the speed by the time

we know that

The distance to his friend's house and the distance of return is the same
so

solve for x

subtract 4x both sides



The total distance of the round trip is

substitute the value of x


suppose 4:4:7 be 4x, 4x, 7x
or, 15x = 180°
or, X = 180/15
or, X = 12
therefore,
4x = 4x12= 48
4x= 4x12= 48
7x= 7x12= 84
so if you plus all of them you get 180
Answer:
The answer is A,C, and D
Step-by-step explanation:
Answer:
The slope is 70
The slope represents the speed of your car
Step-by-step explanation:
The slope is 70, y = mx + c, where m is the slope
The slope represents the speed of your car
speed = distance/time
speed x time = distance
As y represents the distance you travel, x is the time, slope is the speed, you get the distance travelled.
Answer:
$6,283.56
Step-by-step explanation:
The net present value is the present value of after tax cash flows from an investment to the amount invested in a project.
Net present value can be calculated using a financial calculator
Cash flow in year zero = -$290,000
Cash flow each year from year one to three = 0
Cash flow each year from year four to twelve = $64,000.
I = 9%
NPV = $6,283.56
To find the NPV using a financial calacutor:
1. Input the cash flow values by pressing the CF button. After inputting the value, press enter and the arrow facing a downward direction.
2. After inputting all the cash flows, press the NPV button, input the value for I, press enter and the arrow facing a downward direction.
3. Press compute
I hope my answer helps you