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oksano4ka [1.4K]
2 years ago
9

A manufacturer makes ball bearings out of molten steel. It takes 5.24 cubic centimeters of molten steel to make ? ball bearings

that each have a diameter of 1 centimeter.
Mathematics
2 answers:
sammy [17]2 years ago
8 0
<span>So we want to know how much ball bearings can be made with 5.24 cm^3 if one ball bearing has a diameter of 1 cm. We know that radius r=d/2=0.5cm So the volume V of one ball bearing is: V=(4/3)*pi*r^3 so V=(4/3)*3.14*(0.5)^3cm^3=0.524cm^3. Now we simply divide the volume of steel by the volume of the ball bearing: 5.24/0.524=10. So we can make 10 ball bearings from 5.24 cm^3 of steel</span>
elena55 [62]2 years ago
7 0

Answer: 10 ball bearings

Plato is annoying

Step-by-step explanation:

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The number f of miles a helicopter is from its destination x minutes after takeoff is given by f(x)=75−1.5x. The number f of mil
soldier1979 [14.2K]

Answer:

9

Step-by-step explanation:

10-1=9

5 0
2 years ago
Adam can earn money recycling aluminium cans .each can weighs 15g and he can get paid 50p per kg . If Adam earns £15 , how many
kvasek [131]

there is 0.015 kilos in 15 grams. if each can weighs 0.015 and he gets paid 50p per KG. 0.015 X 66 will get you 1 kilogram! so you have 66 cans to get 1 kg worth of cans.  so there is 15 dollars and each kg is worth 50p- so 66 cans is = 50p

and there is 2 KG per dollar so 15 X 2 is 30! and then 66 X 30 is 1980!

66 for each KG and 30 represents how many 50p's are needed for 1 dollar!

so that is 1980 cans to get 15 dollars!


7 0
2 years ago
Choose any positive integer. Powers of two here are not very interesting, so choose something else. If the number you have chose
Yakvenalex [24]

Answer:

Step-by-step explanation:

Let the integer be 6 for even and 7 for odd (say)

For 6, we divide by 2, now get 3.  Now we multiply by 3 and add 1 to get 10. Now since 10 is even divide by 5, now multiply by 3 and add 1 to get 16.  Now divide by 2 again by 2 again by 2 again by 2 till we get rid of even numbers.

The result is 1, so multiply by 3 and add 1 we get 4 now divide 2 times by 2 to get 1, thus this result now again repeats after 2 times.

Say if we select off number 3, multiply by 3 and add 1 to get 10 now divide by 5, now repeat the same process as above for 5 until we get 1 and it gets repeated every third time.

Thus whether odd or even after some processes, we get 1 and the process again and again returns to 1.

5 0
2 years ago
Jovie is maintaining a camp fire. She has kept the fire steadily burning for 101010 hours with 151515 logs. She wants to know ho
Eva8 [605]

Answer:666 hours

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8 0
2 years ago
What is the equation for the linear model in the scatter plot obtained by choosing the two points to the closest line?
sergiy2304 [10]
(4,12) (20,36)
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y intercept (0,6) b = 6
equation
y = 1.5x + 6

answer
b. y = 1.5x + 6
4 0
2 years ago
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