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Kaylis [27]
3 years ago
11

How did my teacher get 70?- like I don’t understand

Mathematics
2 answers:
lys-0071 [83]3 years ago
6 0

Answer:

70

Step-by-step explanation:

180°-40°=140°

140°/2

=70

Neporo4naja [7]3 years ago
3 0

Answer:

Each triangle has angles and all of those angles add up to 180 degrees total. since both of those angles at the bottom are equal then their angles would each be 70.

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1 red marble, 3 green, 4 blue. What is the probability of picking a yellow marble?​
Alexandra [31]

Answer:

zero probability, which means impossible

Step-by-step explanation:

there are no yellow marbles to select from

7 0
3 years ago
How do you solve for sides a and b of a triangle when you know the value of c?
sasho [114]
Assuming you have some angle measures, you could use the Law of Sines to solve for the missing side lengths, which states that,
\frac{a}{sinA}= \frac{b}{sinB}= \frac{c}{sinC},
where a, b, and c correspond to the given sides you have, and A, B, and C represent the angles you have.

In this scenario, you would have to have the values for c (which we do), and have the angle measure of C. In addition, we would also need an angle measure that is either A or B.

Hope this helps a bit!

:)

7 0
3 years ago
How to prove two equations have infinite solutions?
laiz [17]
To prove two equations have infinite solutions, you have to prove that those two equations are the same equations, but in a different form.

For example: Prove the equations are infinite
5y=2x+7
10y=4x+14
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6 0
3 years ago
Find the number if 5/3% of it is 4.75
Lostsunrise [7]
If 5/3% of some number is 4.75, then 1/3% of that number would be 4.75/5. Then multiply that answer by 3 to get 3/3=1% of the number, and finally multiply by 100 to get 100%.
7 0
3 years ago
Phil had 93 dollars, and his sister owed 10 dollars to her friend. How much should Phil give to his sister for each of them to h
slavikrds [6]

Answer:

$51.50

Step-by-step explanation:

<em>Let the amount that Phil give to her sister be  x</em>

<em><u>After Phil's sister pays her debt of 10, Phil and her sister should have EQUAL amount. </u></em>So we can write the equation as:

93-x=x-10

Now solving this for x, we have:

93-x=x-10\\93+10=x+x\\103=2x\\x=\frac{103}{2}=51.5

Hence, Phil must give $51.50 to her sister.

5 0
3 years ago
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