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bonufazy [111]
3 years ago
12

Please help with 18-20, thank you

Mathematics
1 answer:
Anit [1.1K]3 years ago
3 0
18 - 20 is an equation that'll go into integers as your answer. If you subtract 20 - 18 the answer is 2. It's basically the same equation except you're going into negative numbers. 18 - 20 = -2
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A solid cylindrical metal is melted and recast into cubes of metal of sides 3cm . The base radius of the initial cylindrical met
Orlov [11]

Answer:

Approximately 809 cubes will be made

Step-by-step explanation:

To calculate the number if cubes to be made, we shall need to calculate the volume of both shapes

The volume of the cubes can be calculated using the formula L^3 = 3 * 3 * 3 = 27 cm^3

For the cylinder, the formula of the volume to use is

V = π * r^2 * h

The radius here is 10.5 cm and the height is 63 cm

V = 22/7 * 10.5^2 * 63 = 21,829.5 cm^3

The number of cubes that can be made is calculated by dividing the volume of the cylinder by that of the cube

That is 21,829.5/27 = 808.5 which is 809 to the nearest whole number

6 0
3 years ago
John's dog weighs 16 lbs, John's dog weighs 3 times as many lbs as Jim's dog. How much does Jim's dog weigh?
alexandr402 [8]
16*3=48
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6 0
2 years ago
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ad-work [718]

Answer:

question A: 50%

Step-by-step explanation:

For question A: the percentage is ( enroll(2014) - enrol(2012) ) / enrol(2012) for  that is 0.5 = 50%, same method for the other questions

7 0
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7 0
3 years ago
Square root of 50 + square root of 18
skelet666 [1.2K]

if ya asking for simpliicatio

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8\sqrt{2}

5 0
3 years ago
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