Answer:
The length around the figure in terms of r is 2r ( + 4).
Step-by-step explanation:
The perimeter of an object is the total length of the boundary of the object.
The figure consists two similar semicircle and a rectangle.
Adding the two semicircles, a complete circle is formed. The circumference of a circle = 2r.
The rectangle has a length which is twice its height.
i.e l = 2h
But,
r = (the diameters of the semicircles equal the height of the rectangle)
⇒ h = 2r
Thus, one side length of rectangle = 2 × 2r (l = 2 × h)
= 4r
The length around the figure in terms of r is:
= 2r + 4r + 4r
= 2r + 8r
= 2r ( + 4)
The length around the figure in terms of r is 2r ( + 4).
3/8=2/4c+10
Multiply all terms by c and cancel:
3c/8=24+10c
(Simplify both sides of the equation)
3/8c=10c+24
(Subtract 10c from both sides)
3/8c−10c=10c+24−10c
−77/8c=24
(Multiply both sides by 8/(-77))
(8/−77)*(−77/8c)=(8/−77)*(24)
c=−192/77
Answer:
36
Step-by-step explanation:
you add the first two the order of operations then you do big and little
Hey!
~Set up the equation: -5(x-1)=40
~ Divide 5 on both sides: 40/-5
~ Simplify: x-1=-8
~ We want to get x by itself, so subtract +1 to both sides.
~ Simplify: x = -7
~ Therefore, x = -7.
50% of 35 is 17.5 and 10% is 3.5 and 5% is 1.75 so 17.5+1.75+3.5=22.75