2 years ago

Just an answer and simple explanation! Thank you.

Mathematics

1 answer:

vazorg [7]2 years ago

6 0

Answer:

Step-by-step explanation:

If CD and DE equal, then x+6 = 4x -21

So if you subtract x from both sides and plus 21 to both sides, that would be 3x = 27. Divide by 3 on both sides and you get 9.

Plug in x+6 with 9 and you get 15.

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marishachu [46]

Answer:

Step-by-step explanation:

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3 years ago

What is 90 decreased by 40%?

vaieri [72.5K]

Because it's decreasing, you use the formula (1-x/100)y with x the percentage decreased which is here 40, and y the number decreased which is here 90
So we get
(1-40/100) * 90
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3 years ago

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Answer:

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Step-by-step explanation:

The question requires you to make h the subject of the formula.

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3 years ago

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Please give me brainlest

click this link.

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