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pychu [463]
4 years ago
15

I've experiencing for a while but this is Finding missing angles. Please help me!!​

Mathematics
2 answers:
qaws [65]4 years ago
7 0

Answer:

x=15

Step-by-step explanation:

165+x=180

x=180-165

x=15

Elina [12.6K]4 years ago
3 0

Answer:

15° = x

Step-by-step explanation:

By the <em>Supplementary</em><em> </em><em>Angles</em><em> </em><em>Theorem</em><em>,</em><em> </em>you add m<x by 165, and set that equal to 180°, or π. Of course you have to do the inverse of addition in order to get this, so deduct 165 from 180 to end up with 15.

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Ksenya-84 [330]
Suppose the one's digit is x, the ten's digit is y. the original number is 10y+x, the reversed number is 10x+y

x+y=13
(10x+y)=(10y+x)-9 =>9y-9x=9 =>y-x=1
Add the two equation to solve: 2y=14 =>y=7
x=13-7=6
the original number is 76. 


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In algebra, we often study relationships where a change to one variable causes change
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A familiar situation describing where one quantity changes constantly in relation to another quantity is: <em><u>the amount you pay as </u></em><em><u>cost </u></em><em><u>for buying gas at a gas station in relation to the </u></em><em><u>quantity of gas</u></em><em><u> you buy.</u></em>

<em><u /></em>

The two quantities, <em><u>(</u></em><em><u>cost </u></em><em><u>and </u></em><em><u>quantity </u></em><em><u>of gas) are </u></em><em><u>directly proportional</u></em>.

When you represent the relationship of cost of gas and quantity of gas on a graph, you will have: a proportional graph with cost ($) on the y-axis and quantity of gas (gallons) on the x-axis.

<em>(see attachment for how the </em><em>graph </em><em>will look like.)</em>

<em><u>There are usually two </u></em><em><u>variables</u></em><em><u>: </u></em>

  • Independent variable which causes the change.

  • Dependent variable which responds to the change caused by the independent variable.

A situation where one quantity (dependent variable) changes constantly in relation to another quantity (independent variable) is a situation of the amount you pay at a gas station for filling your car with a certain quantity of gallons of gas.

The two quantities are directly proportional to each other.

<em>That is:</em>

  • The cost of gas in dollars (independent variable) is directly proportional to the quantity of gas in gallons (dependent variable).

  • As the quantity of gas increased in gallons, there would be equal increase in the cost of gas in dollars you would pay.

If we are to represent this on a graph, the graph will be a straight line graph showing a proportional relationship between cost of gas (on the y-axis) and quantity of gas (on the x-axis)

<em>(see the image in the attachment below).</em>

<em>Therefore:</em>

  • A familiar situation describing where one quantity changes constantly in relation to another quantity is: <em><u>the amount you pay as </u></em><em><u>cost </u></em><em><u>for buying gas at a gas station in relation to the </u></em><em><u>quantity of gas</u></em><em><u> you buy.</u></em>

<em><u /></em>

  • The two quantities, <em><u>(</u></em><em><u>cost </u></em><em><u>and </u></em><em><u>quantity </u></em><em><u>of gas) are </u></em><em><u>directly proportional</u></em>.

  • When you represent the relationship of cost of gas and quantity of gas on a graph, you will have: a proportional graph with cost ($) on the y-axis and quantity of gas (gallons) on the x-axis.

<em>(see attachment for how the </em><em>graph </em><em>will look like.)</em>

Learn more here:

brainly.com/question/6869319

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