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3 years ago

15

It took Michael 279 hours to drive home because of traffic. His sister drove the same distance in 12 of Michael’s time. How long

did the drive take Michael’s sister?

1 answer:

NemiM [27]3 years ago

6 0

23.25 hours because if you can divide 279 hours (michael) divided by 12, you would get 23 hours and 25minutes

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An animal shelter has 910 of its crates filled with animals.

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12/910 which simplifies to 6/455.

Explanation:

Take the amount of crates holding dogs over the total amount of crates

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lozanna [386]

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The median of the data set is 81. What number is missing?<br><br> 82, 87, _, 77, 70, 80, 88

mina [271]

Median is the middle number.
Rearrange the numbers to smallest to biggest.
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3 years ago

Read 2 more answers

Write the standard form of the line that passes through (-1,-3) and (2,1).

kobusy [5.1K]

Answer:

Step-by-step explanation:

$\mathrm{Line\:passing\:through\:}\left(-1,\:-3\right)\mathrm{,\:}\left(2,\:1\right)\\\\\mathrm{Find\:the\:line\:}\\\mathbf{y=mx+b}\mathrm{\:passing\:through\:}\left(-1,\:-3\right)\mathrm{,\:}\left(2,\:1\right)\\\\\mathrm{Compute\:the\:slope\:}\left(-1,\:-3\right),\:\left(2,\:1\right):\quad \\m=\frac{4}{3}\\\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}\\\\\left(x_1,\:y_1\right)=\left(-1,\:-3\right),\:\left(x_2,\:y_2\right)\\\left\\$

$\\m=\frac{1-\left(-3\right)}{2-\left(-1\right)}\\\\Refine\\\\m=\frac{4}{3}\\\\\mathrm{Compute\:the\:}y\mathrm{\:intercept}:\quad b=-\frac{5}{3}\\\\y=\frac{4}{3}x-\frac{5}{3}\\$

Convert equation to standard form

$y - \frac{4}{3} x + \frac{5}{3} = 0\\\\Multiply \:through\: by\: 3;\\\\3\times (y - \frac{4}{3} x + \frac{5}{3} )=0\\\\3y -4x+5 = 0\\Arrange\:n\:form\:of \:;\\Ax +By = C\\\\-4x +3y =-5$

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3 years ago