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kari74 [83]
2 years ago
6

What's the answer to this

Mathematics
1 answer:
White raven [17]2 years ago
4 0

Step-by-step explanation:

the angle CDB is the supplementary angle to 9x+10 (angle ADC).

that means they stand together for 180°. as all angles around a single point on one side of a line are together always 180°.

and then, the sum of all angles in a triangle is always 180°.

so,

CDB + (4x + 10) + 50 = 180

CDB = 180 - (9x + 10) = 180 - 9x - 19 = 170 - 9x

therefore,

(170 - 9x) + (4x + 10) + 50 = 180

170 - 9x + 4x + 10 + 50 = 180

-5x = -50

5x = 50

x = 10

angle CDB = 170 - 9x = 170 - 90 = 80°

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Hey there!

Here is ur answer >>>>

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Si en la pantalla de tu calculadora aparece el numero 0.572,¿que teclas debes oprimir para que aparezcan los siguientes numeros?
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Step-by-step explanation:

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7 0
3 years ago
Please im begging you guys please please do it for me please
Tasya [4]

When Jamie has $200 to purchase skateboard equipment, he will have spent more than 50 percent.

<h3>How to calculate the percentage?</h3>

From the information given, the total amount spent will be:

= $100 + $60 + $30 + $20 + $20 + $50 + $115

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Since Jamie has $200 to purchase skateboard equipment, the percentage will be:

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Learn more about percentages on:

brainly.com/question/24304697

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