Answer:
The circumference is 98.39 centimeters (rounded to 2 decimal places)
Step-by-step explanation:
The area of a circle has the formula 
The circumference of a circle has the formula 
First, let's find r from area given:
Now, we can use this value of r and plug in into the formula for circumference. Shown below:
The circumference is 98.39 centimeters (rounded to 2 decimal places)
Answer:
40 miles
Step-by-step explanation:
4x10 is 40 miles
Hey there! I'll try to provide you with my best answer.
Answer:
Ration of giraffes to lions= 45:20
Ratio of giraffes to total animals= 45: 65
Hope it helps! ^^
Length of rectangle = 5 less than 2x width
Perimeter = 146 cm
<u>Equations we will use...</u>
w = width
(2w - 5) = length (l)
perimeter (p) = 2(l + w)
<u>Substitute equation for </u><u>length</u><u> into equation for </u><u>perimeter</u>
p = 2(l + w)
146 = 2((2w - 5) + w) [use distributive prop.]
146 = 4w - 10 + 2w [combine like terms]
146 = 6w -10 [solve for w]
156 = 6w
w = 26 cm
<u>Now substitute width back into the </u><u>equation</u><u> for length...</u>
l = 2w - 5
l = 2(26) - 5
l = 47
Double check to make sure values added up to 146 cm
w + w + l + l = 146
26 + 26 + 47 + 47 = 146
146 = 146
Therefore, the width is 26 cm and the length is 47 cm.
