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Elena L [17]
3 years ago
7

The amount a spring will stretch varies directly with the amount of weight attached to the spring. If a spring stretches

Mathematics
2 answers:
Juli2301 [7.4K]3 years ago
7 0

Answer:

1.05 inches

Step-by-step explanation:

As the  stretch varies directly  with the amount of weight it means that a decrease in weight result in a proportional decrease of stretch.

stiks02 [169]3 years ago
7 0

Answer:

The spring will stretch 1.05 inches.

Step-by-step explanation:

The amount a spring will stretch varies directly with the amount of weight attached to the spring.

Let the spring stretches x inches when 40 pound is attached.

we get the following relation;

\frac{2.1}{80} =\frac{x}{40}

=> 80x=2.1\times40

=> 80x=84

x = 1.05 inches

Hence, the spring will stretch 1.05 inches.

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The formula for determining how long a hike will take is t=1/2(d+h) , where d is the distance in miles and h is the elevation ga
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3 years ago
Read 2 more answers
The data displayed by the graph indicate that in 2000,
MrMuchimi

Using an linear function, we find that by 2020 only 11% of all American adults believe that most qualified students  get to attend college.

-----------------------------------------

A decaying linear function has the following format:

A(t) = A(0) - mt

In which

  • A(0) is the initial amount.
  • m is the slope, that is, the yearly decay.

  • In 2000, 45% believed, thus, A(0) = 45
  • Decaying by 1.7 each year, thus m = 1.7.

The equation is:

A(t) = 45 - 1.7t

It will be 11% in t years after 2000, considering t for which A(t) = 11, that is:

11 = 45 - 1.7t

1.7t = 34

t = \frac{34}{1.7}

t = 20

2000 + 20 = 2020

By 2020 only 11% of all American adults believe that most qualified students  get to attend college.

A similar problem is given at brainly.com/question/24282972

7 0
2 years ago
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