1846252
08.04.2021 •
Mathematics
John and Mary had Php 384 altogether. After John gave Php 36 to Mary, Mary had 3 times as much money as John. How much money did Mary had at first?
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Ответ:
radius = 7π
Step-by-step explanation:
The area (A) of a circle = πr² ← r is the radius
The area is given as 49π³ , equating gives
πr² = 49π³ ← divide both sides by π
r² = 49π² ← take the square root of both sides )
r =
= 7π