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3 years ago

Simplify

Mathematics

1 answer:

Schach [20]3 years ago

8 0

$2x + 7y + 3x + 4y$

$(2x+3x)+(7y-4y)
 
$ $Gather \ like \ terms$

$5x+11y$

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Step-by-step explanation:

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dexar [7]

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3 years ago

Find the slope of the line that passes through (-24, 90) and (-23, 52).

Ostrovityanka [42]

Answer:

-38

Step-by-step explanation:

The slope is rise over run. You need to find out how far one point is from the other. To do this, use the equation for slope.

$m=\frac{y_{2}-y_{1} }{x_{2}- x_{1} }$

Plug in the points given into the equation and solve for slope (m).

$m=\frac{y_{2}-y_{1} }{x_{2}- x_{1} }\\m=\frac{90-52 }{-24-(-23) }\\m=\frac{90-52 }{-24+23 }\\m=\frac{38}{-1} \\m=-38$

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3 years ago

Dave and Ellen are newly married and living in their first house. The yearly premium on their homeowner's insurance policy is $4

Mila [183]

Answer:

a. $27

b. $9

Step-by-step explanation:

The yearly premium on their homeowner's insurance policy is $450 for the coverage they need.

Their insurance company offers a discount of 6 percent if they install dead-bolt locks on all exterior doors.The couple can also receive a discount of 2 percent if they install smoke detectors on each floor.

a. What discount will Dave and Ellen receive if they install the dead-bolt locks?

$0.06\times450=27$ dollars

b. What discount will Dave and Ellen receive if they install smoke detectors?

$0.02\times450=9$ dollars

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Romashka-Z-Leto [24]

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