What is the rate of change of a line that passes through the points (-3,5) and (2,-1)?

Mathematics

1 answer:

lara [203]3 years ago

6 0

Answer:

3/4

Step-by-step explanation:

The slope of the line is

m = (y2-y1)/(x2-x1)

= (-2--5)/(6-2)

= (-2+5)/(6-2)

=3/4

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A small store sells Cds and DVDs. The Cds sell for $9 each. The DVDs sell for $11 dollars each. Cody is working part time and se

AnnZ [28]

Answer:

He sells 8 CDs and 12 DVDs.

Step-by-step explanation:

In order to solve this, we have to set up a system of equations. We'll let x equal the amount of CDs and y equal the amount of DVDs. First, we'll set up an equation for the total number of items sold.

CDs + DVDs = 20 items

x + y = 20

Now we can set up one for amount of money made.

$9 for every CD + $11 for every DVD = $204

9x + 11y = 204.

Now that we have 2 equations we can solve. To do so, we'll multiply the first equation by -9 and then add them together.

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8 0

3 years ago

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densk [106]

Answer:

3/4

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Step-by-step explanation:

5 0

2 years ago

This was due 5 hours ago help pls?

krok68 [10]

Answer:

x = 66

Step-by-step explanation:

$m \angle \: 5 + m \angle \:6 = 180 \degree \\ (straight \: line \: \angle s) \\ \therefore \: (2x)\degree + 48\degree = 180 \degree \\ \therefore \: (2x)\degree = 180 \degree - 48\degree\\ \therefore \: (2x)\degree = 132 \degree \\ \therefore \:x = \frac{132}{2} \\ \: \: \: \huge \purple{ \boxed{\therefore \:x = 66}}$