there are 765 marbles in a in a box. there are twice as many blue marbles as green marbles. there are 3 times as many red marbles as blue marbles, how many red marbles in the box

Answers

Answer 1

Answer: let the no. of green marbles be x
no of blue marbles = 2x
no of red marbles = 3*2x = 6x
total marbles = 765
so, x+2x+6x = 765
or, x = 765/9 = 85
no of red marbles = 6*85 = 510

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Which statement is true?A. 6 > 6
B. –8 < –3
C. 5 < –6
D. –12 > –6

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Answer:

Step-by-step explanation:

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Answer:

my answer is B

Step-by-step explanation:

I know this because I just took a test on this and got it right.

Frank is currently using 1/3 of the space available on his computer. Pictures fill up 1/2 of the used space. How much space on Frank's computer is filled with pictures?

A. 1/2

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C. 1/5

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Answers

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PLEASE ANSWER QUICKLY... Liam and Michelle split the cost of supplies to build some trebuchets. The expression for the cost that each must pay to make t (trebuchets) is (2.5t+2)+(1.8t+3) as the numerator and 2 as the denominator. What is the cost for each person if t=2

Answers

I got you.

Just plug 2 in for t into your expression.
You should get 6.8

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Kylie explained that (–4x + 9)2 will result in a difference of squares because (–4x + 9)2 = (–4x)2 + (9)2 = 16x2 + 81. Which statement best describes Kylie’s explanation?Kylie is correct.
Kylie correctly understood that it is a difference of squares, but she did not determine the product correctly.
Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.
Kylie determined the product correctly, but she did not understand that this is a perfect square trinomial.

Answers

The expression (-4x + 9)^2 cannot be equal to (-4x)^2 + 9^2 because it is actually equal to the product of two factors (3 + 2sqrt x) (3- 2 sqrt x). One cannot use obviously distributive property. Hence the answer to this problem should be C. as she did not understand both perfect square trinomial and did not determine the product

The correct answer is: (C) Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.

Explanation:
Kylie did not determine the product correctly, as the perfect-square trinomials are of the form:
$a^2x^2 \pm 2axb \pm b^2$

and are expressed in the squared-binomial form as:
$(ax \pm b)^2$

The correct product would be:
$(-4x + 9)^2 = (-4x)^2 + 2(-4)(9)x + (9)^2 = 16x^2 - 72x + 81$

Hence the correct answer is that Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly (Option C).

What is -4x=-2+4y -4y=1-4x

Answers

I hope this helps you

The 2020 Election is shaping up to be the largest one yet! They estimate that there are 240,000,000 eligible voters in the United States this year. So far, 70,000,000 have voted, and experts estimate that upwards of 150,000,000 people will vote in total this year. What percentage of eligible voters will participate in this year's election?