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babunello [35]
2 years ago
9

A 60-cm spring will stretch (in cm) one third the weight (in kg) attached to it. How long will the spring be if a 20-kg weight i

s attached?
Mathematics
1 answer:
Rainbow [258]2 years ago
4 0

9514 1404 303

Answer:

  66 2/3 cm

Step-by-step explanation:

The weight in kilograms is 20, so the stretch in cm is 20/3 = 6 2/3 cm.

When the 60 cm spring is stretched an additional 6 2/3 cm, its length will be ...

  60 +6 2/3 = 66 2/3 . . . cm

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3 years ago
Which is equivalent to 8x−y 3x8x-y 3x?
garri49 [273]
IT IS 2X IF U NEED SOME ELSE TELL ME
 
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A ball is thrown in the air from a ledge. Its height in feet is represented by  f(x) = –16(x^2 – 5x – 6), where x is the number
leonid [27]
I believe your answer is 6 seconds.

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6 0
3 years ago
The value of y varies directly with x. If x = 5 when y = 12, what is the value of x whon y = 30?
Brrunno [24]

Step-by-step explanation:

y = kx, where k is a real constant.

When y = 12, x = 5.

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Therefore when y = 30,

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Charles bought 7/8 foot of electrical wire and 5/6 foot of copper wire for his science project .What is the least common denomin
coldgirl [10]

Answer:

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Step-by-step explanation:

we know that

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so

we have

7/8

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5/6

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<em>Alternative Method</em>

we have

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so

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3 years ago
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