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3 years ago

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There is 100 people in each train car so how many people are they in each train there is ten cars in each train and thirty train

s help me please

1 answer:

snow_tiger [21]3 years ago

6 0

Information given:

- <u>100 passengers in each train car</u>

- <u>10 train cars total</u>

- <u>30 trains total</u>

<em>So we are trying to find the total number of passengers on all 30 trains?</em>

<u />

Step-by-step:

100 x 10 = <u>1,000 passengers per train</u>

1,000 x 30 = <u>30,000 passengers total within the 30 trains</u>

Answer: <u>30,000 passengers</u>

<em>Hopefully this answered your question :)</em>

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What is the sum of series is numbers 64&66 ?<br> Using the summation notation

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Answer:

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66. 8.078125

Step-by-step explanation:

Let's take it one number at a time.

For number 64:

$6(2)^{1-1}=6$

$6(2)^{2-1}=12$

$6(2)^{3-1}=24$

$6(2)^{4-1}=48$

$6(2)^{5-1}=96$

$6(2)^{6-1}=192$

$6(2)^{7-1}=384$

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For number 66:

$12(-\frac{1}{2})^{0}=12$

$12(-\frac{1}{2})^{1}=-6$

$12(-\frac{1}{2})^{2}=3$

$12(-\frac{1}{2})^{3}=-1.5$

$12(-\frac{1}{2})^{4}=0.75$

$12(-\frac{1}{2})^{5}=-0.375$

$12(-\frac{1}{2})^{6}=0.1875$

$12(-\frac{1}{2})^{7}=-0.0078125$

$12(-\frac{1}{2})^{8}=0.046875$

$12(-\frac{1}{2})^{9}=-0.0234375$

Sum = 12 + -6 + 3 + -1.5 + 0.75 + -0.375 + 0.1875 + -0.0078125 + 0.046875 + -0.0234375

or to make things simpler:

Sum = 12 - 6 + 3 - 1.5 + 0.75 - 0.375 + 0.1875 - 0.0078125 + 0.046875 - 0.0234375

Sum = 8.078125

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3 years ago