the speed a car travels is inversely proportional to the time it takes to complete a 100 mile trip. which of the following graphs best represents this situation

Answers

Answer 1

Answer:

Answer:

Inversely proportion states that a relationship between two variables in which the product is a constant.

If one of the variable increases, then the other decreases in proportion so that the product is unchanged.

If y is inversely proportional to x, then the equation is of the form

$y = (k)/(x)$ ; where k is the constant proportionality.

As per the given condition: Speed of a car is inversely proportional to the time it takes to complete a 100 mile trip,

Let x represents the speed of car and y represents the time taken.

From the given condition:

$x \propto (1)/(y)$

Then by definition of inversely proportional;

$x = (k)/(y)$ [Since, $speed = (Distance)/(Time)$ ]

Here, k represents the distance(i.e constant) = 100 miles.

therefore, the equation becomes now;

$x = (100)/(y)$ or

xy = 100

The following graph for the above equation as shown below :

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Answer:

-48

Step-by-step explanation:

First You put The question in Order

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The answer for this question is D

If 78 sit-ups is done in 2 minutes how many can be done in 5 minutes

In 5 minutes 195 sit ups can be done.

The unitary method is a process that determines the value of a single unit from value of multiple units, as well as the value of multiple units from of the value of a single unit.
It is a method for determining the value of a single unit by subtracting the value of multiple units and subtracting the value of different components from of the value of a single unit.

For the given question.

If 78 sit-ups is done in 2 minutes.

this can be written as;

2 minutes -------> 78 sit ups.

For 1 minutes, divide both side by 2.

1 minutes -------> 39 sit ups.

For 5 minutes, multiply both sides by 5.

5 minutes -------> 195 sit ups.

Thus, in 5 minutes 195 sit ups can be done.

To know more about the unitary method, here

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