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3 years ago

Yx*2; use x=7,And y=2

Mathematics

1 answer:

Lyrx [107]3 years ago

6 0

Answer:

Step-by-step explanation:

First you plug in your x, and y to get (2)(7)*2

Then you just have to times them all together and you get 2*7=14 then 14*2=28

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A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is

Serhud [2]

Answer:

It has 10 three-point questions and 14 five-point questions

Step-by-step explanation:

Substitution (look it up it takes a long time to explain lol)

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2 years ago

Lilian is packing gifts for the needy. She has 240 toys and 180 books

Virty [35]

Answer:

1. 240+180=420 packages.

2. 420 ÷ 240=2 toys and 1 left over.

3. 420 ÷ 180=2 books and 1 left over.

Step-by-step explanation:

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3 years ago

Read 2 more answers

Which expression is equivalent to (9x2y6)−1/2?

galben [10]

Answer:

B. 1/(3xy^3)

Step-by-step explanation:

The minus sign can be dealt with first, then the root taken.

$\left(9x^{2}y^{6}\right)^{-\frac{1}{2}}=\dfrac{1}{\sqrt{9x^{2}y^{6}}}\\\\=\dfrac{1}{\sqrt{9}\sqrt{x^2}\sqrt{y^6}}=\dfrac{1}{3xy^3}$

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3 years ago

Please help marking brainliest if it's correct and explain

yarga [219]

Imma take a guess maybe C

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3 years ago

What is x and how do I do this help-

GaryK [48]

Answer:

x=18

Step-by-step explanation:

all the interior angles in a pentagon = 540. use to interior angle theorem. then just add all the angles up and make them = to 540 like this: 540=95+90+(7x-4)+(3x+23)+(9x-6). then solve using algebra

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2 years ago