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svetlana [45]
3 years ago
9

Eurostar is a high-speed railway service connecting

Mathematics
1 answer:
Setler79 [48]3 years ago
8 0

Answer:

649 trains

Step-by-step explanation:

If there are 30 seats per carriage, and there is 18 carriages per train.

You multiple 30 and 18 to get how many seats there are in a train.

30*18 is 540 seats.

To figure out how many trains would be needed to seat 350,000 passenger, you have to divide 350,000 with 540 to get how many trains would be needed.

350,000/540 is 648.1

Since the answer is 648.1 and you can't chop a train into 10 pieces, you would need 649 trains to seat 350, 000 passengers.

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Mariana [72]
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3 years ago
What are the solutions of x2 = 8 - 5x?
jonny [76]

Answer:

That can be re-written:

x^2 + 5x -8 = 0

We use the Quadratic Formula

a=1

b = 5

c = -8

x = [-b +- sq root (b^2 - 4ac) ] / 2a

x = [-5 +- sq root (25 - - 32)] / 2

x1 = [-5 + sq root (57)] / 2

x1 = 1.27491722

x2 = [-5 - sq root (57)] / 2

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Step-by-step explanation:

5 0
3 years ago
Make r the subject of the formula
zloy xaker [14]

Answer:

r=\frac{-a+p}{a+p}

Step-by-step explanation:

-pr+p=ar+a

-ar-pr+p=a

-ar-pr=a-p

r(-a-p)=a-p

r=\frac{-a+p}{a+p}

3 0
3 years ago
Read 2 more answers
What is the value of u if 6u =15
tatiyna
6u = 15
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3 years ago
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When it says find g(-10) it meant when x is -10 what is the solution. By the way the solution is -110.

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