Answer:
Alina had at the beginning cookies
Step-by-step explanation:
we know that
c-----> represent 30% of all the cookies Alina had
Let
x-----> the 100% of all the cookies Alina had
by proportion
20 customers are eating at a local resturant. of the 20 customers 4 have enough to pay cash, 16 have enough to pay card and 3 ha
1 answer:
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Answer:
Volume of the machine part = 114π inches³
Step-by-step explanation:
Volume of the machine part = Volume of cylinder + Volume of hemisphere
Volume of cylinder =
Where r = radius of the cylinder
h = height of the cylinder
Volume of the cylinder =
= 108π inches³
Volume of the hemisphere =
=
= 6π inches³
Total area of the machine part = 108π + 6π
= 114π inches³