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xaxtusgod
25.06.2019 •
Mathematics
The length of a rectangle are represented by consecutive even integers. if the perimeter is 60, find the dimensions
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Ответ:
Length = 24 and width = 6.
Step-by-step explanation:
2L + 2W = 60 where L = length and W = width.
The length must be in the 20's to make a perimeter of 60, as there's no number in the 10's or 30's that has 2 consecutive even integers and 40 something is impossible.
The only length which fits the given conditions is 24.
Then the width would be (60 - 2(24)) / 2 = (60 - 48) / 2
= 6.
That's the answer.
Ответ:
50% decrease
Step-by-step explanation:
Volume of a cylinder:
The volume of a cylinder with radius r and height h is given by:
Cylinder A has a radius of 8 inches and a height of 3 inches.
This means that:
Cylinder B has a volume of 96π. What is the percentage change in volume from cylinder A to cylinder B?
Cylinder's B volume is half of Cylinder's A, so there was a 50% decrease.