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mash [69]
4 years ago
8

Solve for x in the diagram below

Mathematics
2 answers:
yan [13]4 years ago
8 0

Answer:

x=20

Step-by-step explanation:

You make an equation knowing that the angles add up to 180.

80+5x=180---> 5x=100----> x=20

Please write a comment if I am wrong.

Hope this helped you!

Charra [1.4K]4 years ago
3 0

Answer:

x = 20 degrees

Step-by-step explanation:

All three angles added together form a straight line.  A straight line is 180 degrees

3x+ 80 + 2x = 180

Combine like terms

5x+80 = 180

Subtract 80 from each side

5x+80-80 = 180-80

5x= 100

Divide each side by 5

5x/5 = 100/5

x = 20

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frozen [14]

Answer:

Option A is correct.

The missing justification is: Transitive property

Step-by-step explanation:

Given:  \angle A \cong \angle B ,   \angle C \cong \angle B

Symmetric property of equality states the if for all real values of x , y

if x =y then, y =x.

Then, by symmetric property of equality:

we can write  \angle C \cong \angle B as

\angle B \cong \angle C

Transitive property of equality states that if we have the two things that are equal to each other and the second thing is equal to a third thing.

i.e, if a =b and b =c

then a =c

By transitive property of equality:

if  \angle A \cong \angle B and \angle B \cong \angle C

then;

\angle A \cong \angle C                      ......[1]

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4 0
3 years ago
Read 2 more answers
Jill sold half of her comic books then bought 16 more, she now has 36. With how many did she begin with? Break it down please
marusya05 [52]
A: 40

Let’s do this problem backwards.


TOTAL BOOKS RN: 36

1)
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After subtracting that amount, we would end up with half of the books Jill DID NOT sell.

2)
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At this point, we multiplied amount of books she had after she sold half of her comic books by the reciprocal of 1/2

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4 0
3 years ago
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Svetach [21]

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Step-by-step explanation:

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Where r = 4 cm

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I am Lyosha [343]

Answer:

A

Step-by-step explanation:

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3 years ago
Casey has a job doing valet parking. Casey makes an hourly rate of $4.55 per hour plus tips. Last week Casey worked 26 hours and
qaws [65]
The answer is D. <span>$780.25 
</span>
In this particular case, you just need to find the difference between what Casey earn hourly with his total earning..

The hourly wage that Casey earned in 26 hours:
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The total amount that casey earned in 26 hours:
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So, the amount that Casey earned through tips:
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