A coin collector is able to collect five coins each day. The collector has five coins on the first day, 10 on the second, 15 on
2 answers:
Answer:
Step-by-step explanation:
Let d represent the number of days.
We have been given that a coin collector is able to collect five coins each day.
The number of coins after d days would be 5 times d.
We can represent this information in an expression as:
Therefore, the expression represents the number of coins the collector has after d days.
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ANSWER :
Surface area of larger cone : 24π units^2
Surface area of smaller cone : 6π units^2
The surface area of the smaller cone is 25% of that of the larger cone.
EXPLANATION :
From the given problem,
AB = 3 is the radius of the larger cone and the slanted height is BC = 5
DE = 1.5 is the radius of the smaller cone and the slanted height is EC = 2.5
Recall the surface area of the cone :
where r = radius and L = slanted height.
For the larger cone, r = 3 and L = 5
For the smaller cone, r = 1.5 and L = 2.5
Comparing the surface areas :
The area of the smaller cone compared to the larger cone is :
That's the first one
