Answer:
4.5 miles
Step-by-step explanation:
Distance = 9 inches
1 inch = 1/2 mile
9 / 1/2 = 4.5
9 inch = 4.5 miles
Yes because if you check with your math (or a calculator) 365 times 8 is 2,920. Therefore, Isaac's answer is reasonable. Another way you can maybe do it is round 365 days to 370 and 8 to 10 and then multiply. 370 times 10 is 3,700. Since 2,920 is close to 3,700, then the answer is reasonable.
Hope I helped!!
Answer:
1. 8820.26 yds^2
2. 101.265 m^2
Step-by-step explanation:
For both problems you need to use the equation π*r^2 which is the area of a circle and where r is the radius of the circle. The radius is also equal to 1/2 the diameter so using this we can figure out the are of the first circle
For the second problem we have to find the area of the circle with and without the sidewalk around it and subtract them from each other
Senior tickets (x)
Child tickets (y)
First day: 3x + 5y = 70
second day: 12x + 12y = 216
Solve the system of equations (use elimination)
Multiply first equation by -4 -4(3x + 5y = 70), which makes it
-12x - 20y = -280
(+)12x + 12y = 216 add to second equation
-8y = -64
divide by -8. y = 8
Plugin the y value to either equation ( I will choose first equation)
3x + 5(8) =70
3x+ 40 = 70
3x = 30
x = 10
Senior tickets are $10, child tickets are $8
Answer:
Depreciation rate = 16.32%
Step-by-step explanation:
First we calculate the annual depreciation of the car
Annual Depreciation = (Cost of car – Net Scrap Value of car)/Useful Life
Details
Cost of Car= $14850
Net scrap Value of car= $3,960
useful Life=4
Thus: Annual Depreciation = ($14850-$3,960)/4
= $2,722/year (Annual Depreciation)
Rate = Annual Depreciation/Cost of car X 100%
= $2,722/$14,850 X 100%
Depreciation rate = 16.32%
