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4 years ago

Find the lengths, if needed round to the nearest tenth

Mathematics

1 answer:

Elis [28]4 years ago

7 0

Answer:

Step-by-step explanation:

Triangle ABC is a right angle triangle that is made up of 2 right angle triangle.

To determine y, we would apply Pythagoras theorem which is expressed as

Hypotenuse² = opposite side² + adjacent side²

15² = y² + 12²

225 = y² + 144

y² = 225 - 144 = 81

y = √81 = 9

To determine z,

20² = z² + 12²

400 = z² + 144

z² = 400 - 144 = 256

z = √256 = 16

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Solve 4x-4y=-16; x-2y=-12 by using substitution

Diano4ka-milaya [45]

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3 years ago

Which ratio is equivalent to 9:180

Mamont248 [21]

Step-by-step explanation:

B 12:240

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2 years ago

What is the error shown above in the picture

bixtya [17]

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4 years ago

PLEASE HELP I GIVE BRAINLIEST

grigory [225]

Answer:

I would think it would be C. because there is not other answer.

I hoped this help.

please mark brainliest if correct

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3 years ago

Describe the proportion method for solving a percentage problem:

kvasek [131]

EXPLANATION 

First you will need TWO numbers. One being the percentage and the other being the number your trying to find the percent out of.

EXAMPLE

Imagine you have 130 crayons. Out of the 130 crayons you found that 15% of them were broken.

First you want too take the 15% and put it over 100, because a percentage always goes over 100. Now that you have the 15/100 you now wanna take the 130 crayons and put the variable X over it. Now that you have the fractions 15/100 and X/130 you want to cross multiply them to get 100x and 1950. For the final step your going to want to take 1950 and divide it by 100 to get your answer, 19.5.

I hope this helped you find out the method for solving a percentage problem while using proportions.

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4 years ago