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3 years ago

PLEASE ANSWER I NEED LOTS OF HELP!!!!!!!!!!!!!!

Mathematics

1 answer:

Romashka [77]3 years ago

8 0

Answer:

40%

Step-by-step explanation:

Rachael liked 36/90 books movies that she watched. This simplifies to 2/5 which is 0.4. To find the percentage, we multiply 0.4 by 100 to get 40%.

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HELP !!!!!!!!!!!!!!!!!!!!!!!

Lelu [443]

Answer:

25 $\pi$ Or 78.5 units³

Step-by-step explanation:

1/3πr²h

1/3xπx25x3=25π or 78.5

7 0

3 years ago

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Nineteen students were invited to michelle's party. Three more boys than girls were invited. How many boys were invited?

bekas [8.4K]

11 boys and 8 girls because you divide it in half the add 2 and subtract 1. That isn't the wy you are supposed to do it but it works and makes since in my head.

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3 years ago

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W^2-8w-20 factor the polynomial.

Mademuasel [1]

Your answer would be (w+2)(w−10). If you want me to explain please don't hesitate to ask.

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3 years ago

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Ruben bought 6 new books for his collection. This increased his collection by 12%. How many books did he have before his purchas

Norma-Jean [14]

Answer: The required number of books that Ruben had before purchases is 50.

Step-by-step explanation: Given that Ruben bought 6 new books for his collection that increased his collection by 12%.

We are to find the number of books that Ruben had before purchases.

Let x denotes the number of books that Ruben had before purchases.

Then, according to the given information, we have

$x+6=x+12\%\times x\\\\\\\Rightarrow 6=\dfrac{12}{100}x\\\\\\\Rightarrow 6=\dfrac{3x}{25}\\\\\\\Rightarrow 3x=150\\\\\Rightarrow x=\dfrac{150}{3}\\\\\Rightarrow x=50.$

Thus, the required number of books that Ruben had before purchases is 50.

4 0

3 years ago

If UW =9x-9 what is UW as units

Vaselesa [24]

UW is always equal to 9x-9 or 9(x-1) whenever x is a real number. By adding in x, we can get the value.

For example, if x was 4, we add in x, giving us 9*4-9=36-9=27 units or
9(4-1)=9(3)=27 units

Hoped this helped in time!

4 0

3 years ago