hayleymckee
02.03.2021 •
Mathematics
If the difference between the circumference and radius of a circle is 74 CM, find the radius.
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Ответ:
Given that,
Circumference – Radius = 74 cm
2πr – r = 74
r ( 2π – 1 ) = 74
r ( 2× 3.14 – 1 ) = 74
r ( 6.28 – 1 ) = 74
5.28 r = 74
r = 74 / 5.28
r = 14.01 cm
As we know,
Diameter = 2 × Radius
Diameter = 2 × 14.01
Diameter = 28.02 cm
Step-by-step explanation:
Ответ:
let x is the number of hours you would have to work
$13x = $143
x = 143/13
x = 11
You need to work 11 hours to earn $143