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3 years ago

Ben 56 years, Kevin will be 9 times as old as he is right now.

Mathematics

2 answers:

Bad White [126]3 years ago

4 0

56X9=504? Is that what your looking for

Oksana_A [137]3 years ago

3 0

A represents his age nowa + 56 = 9a Can you solve for a?

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3 years ago

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2 years ago

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Find the equation of a line that passes through the point (3,1) and has a gradient of -3. Leave your answer in the form y = m x

Bingel [31]

Answer:

$y = (-3)\, x + 10$ .

Step-by-step explanation:

The question requires that the equation should be in the slope-intercept form $y = m \, x + c$ . The $m$ and $c$ in this equation are constants. In particular:

$m\!$ would represent the slope of this line (also known as the gradient of this line,) whereas
$c$ would be the $y$ -intercept of this line.

The question states that the slope of this line is $(-3)$ . Therefore, $m = -3$ . Thus, the equation for this line should be in the form $y = (-3)\, x + c$ .

The value of constant $c$ could be found using the other piece of information: the point $(3,\, 1)$ is in this line. In other words, the solution $\text{$x = 3$ and $y = 1$}$ should satisfy the equation $y = (-3)\, x + c$ .

Substitute $\text{$x = 3$ and $y = 1$}$ into the equation $y = (-3)\, x + c$ and solve for $c$ :

$1 = (-3) \times 3 + c$ .

$1 = -9 + c$ .

$c = 10$ .

Hence, $y = (-3) \, x + 10$ would be the slope-intercept form of the equation of this line.

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Step-by-step explanation:

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2 years ago

Harper knows he is 50 yards from school. The map on his phone shows that the school is 34 inch from his current location. If Har

AlexFokin [52]

Answer:

Step-by-step explanation:

To solve this problem you must apply the proccedure shown below:

1. We know that 1 yard is 36 inches, therefore, 50 yards expressed in inches is:

2. If he is 50 yards from school and the map shows that the school is 34 inches from his current location, when it shows 3 inches the real distance is:

<u> (1800)(3in)/24in=158.82</u>

3. If you can to express it in yards:

<h2><u>Therefore, the answer is: 158.82 inches or 4.41 yards.</u></h2>

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2 years ago