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EleoNora [17]
3 years ago
13

A bag contains green marbles and red marbles, 43 in total. The number of green

Mathematics
1 answer:
sukhopar [10]3 years ago
6 0
26

r + 2r - 8 = 43
3r = 51
r = 17
g = 2r-8 = 34-8=26


Mark brainliest please
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4vir4ik [10]
I believe the answer is 87.5
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Solve the system for x:<br> 6x - 5y = 8<br> 2x + 9y = 24
Gennadij [26K]

Answer:

x = 3

Step-by-step explanation:

\left \{ {{6x-5y=8} \atop {2x+9y=24}} \right.

I'm going to use the method of elimination by multiplying the second equation by -3:

\left \{ {{6x-5y=8} \atop {-6x-27y=-72}} \right.

Then I can eliminate x:

-32y = -64

To solve for y, I'd simply divide:

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Because I now have y = 2, I'll just plug in 2:

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8 0
4 years ago
A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 47.0 and 52.
Pavlova-9 [17]

Answer:

0.15 or 15%

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Since lengths are uniformly distributed, the probability that a class period runs between a two exact times is:

P(x_1\leq x \leq x_2)=\frac{x_2-x_1}{b-a}

In this case, a = 47.0 and b = 52.0 minutes.

The probability that a given class period runs between 50.25 and 51.0 minutes is:

P(50.25\leq x \leq 51.0)=\frac{51.0-50.25}{52-47} \\P(50.25\leq x \leq 51.0)=0.15=15\%

The probability is 0.15 or 15%.

7 0
3 years ago
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Amiraneli [1.4K]

Answer:

C. 7

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3 years ago
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Klio2033 [76]
5/6 of the paper is devoted to news and pictures

first I made the fraction have equal denominators which was 6 by doing that I multiplyed the numerator and the denominator

1/2
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1/3
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now you would be able to add the numerators, so 2+3=5
therefore being 5/6 of the paper is devoted to news and pictures
4 0
3 years ago
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