Answer:
Answer:
C.46 ft
Step-by-step explanation:
we know that
The perimeter of the garden is equal to sum three sides of the rectangle plus the circumference of a semicircle
so
we have
substitute the given values
Step-by-step explanation:
To do this, find the surface area of each two-dimensional shape.
The two triangles have a combined area of 24.
The two rectangles have a combined area of 70.
The center rectangle has an area of 42.
Add them together to get 136 as your surface area.
(2−2n)−(5n−27) >0
distribute
2-2n -5n +27 >0
combine like terms
-7n +29 >0
subtract 29 from each side
-7n> -29
divide by -7 (flips the inequality)
n < -29/-7
n <4.14
natural numbers are 1,2,3,4......
n must be 1,2,3,4
Answer: 1,2,3,4
If he bikes for 10 miles per hour and 8 miles per hour for the same distance x miles, he went 10 miles per hour for x/10 hours, as Distance = Rate*Time and on the way back he would go for x/8 hours. So then he went 2x distance, in x/8 + x/10 hours. Since x/8 + x/10 = 10x/80 + 8x/80 = 18x/80 = 9x/40, he went 2x miles in 9x/40 hours. this can be converted into a rate with the above equation Distance = Rate*Time, so 2x=(9x/40) * Rate, thus we divide by 9x/40 on both sides to get 80x/9x = Rate, the x cancels out, and we get 80/9 Miles per hour.
