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Harrizon [31]
3 years ago
13

9r+7+3(8p+7r)+15 simplify the expression

Mathematics
1 answer:
Lynna [10]3 years ago
5 0
30 r + 22 + 24 p .....
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Deshawn has two bags of marbles. The first bag has 2 blue, 3 orange, and 5 red. The second bag has 4 pink, 10 blue, and 6 brown.
madreJ [45]

Answer: 0.1

Step-by-step explanation:

Given

Bag-I has 2 blue,3 orange, 5 red

Bag-II has 4 Pink,10 blue, 6 brown

No of ways of choosing a blue marble from bag-I

\Rightarrow ^2C_1

Total no of ways of choosing a marble from bag-I

\Rightarrow ^{10}C_1

No of ways of choosing a blue marble from bag-II

\Rightarrow ^{10}C_1

Total no of ways of choosing a marble from bag-II

\Rightarrow ^{20}C_1

The probability that he will pull out a blue marble from each bag is

\Rightarrow P=\text{Probability of pulling a blue marble from bag-I}\times \text{Probability of pulling a blue out bag-II}

\Rightarrow P=\dfrac{^2C_1}{^{10}C_1}\times \dfrac{^{10}C_1}{^{20}C_1}\\\\\Rightarrow P=\dfrac{2}{10}\times \dfrac{10}{20}=\dfrac{1}{10}

3 0
3 years ago
HELP 15 POINTS<br> Write a rule for the nth term of the sequence. Then find a20 -<br> 51,48,45,42
garri49 [273]

Answer:

45 because it is what I think

7 0
3 years ago
What is the unit rate for the Japanese bullet train?
alisha [4.7K]

Answer:

186 Miles per hour.

Step-by-step explanation:

558/3

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2 years ago
Solve for y. identify the slope and y-intercept. then graph the equation.<br><br> y=-3x+1
stealth61 [152]

Answer:

the slope -3, slope meaning rate of change and y intercept is 1.

hope that answers your question

(used desmos to graph, good stuff!!!)

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2 years ago
Please help I’m failing
vredina [299]

The answer is B.........

8 0
3 years ago
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