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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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Which is the better buy, 6 bagels for $3.39 or 8 bagels for $5? Explain
inessss [21]

Answer: 8 bagels for 5

Step-by-step explanation:so you’re going to divide the price to the quantity which will be 5/8= 0.6

3.39/6=0.56 ans you’ll take the 8 bagels for 5 because one bagel is approximately like the 6 bagels for 3.39

6 0
3 years ago
Solve the equation for x, where x is a real number (5 points): <br> 2x^2 + 7x - 9 = -3
Tanya [424]
Add 3 to both sides so that the equation becomes 2x^2 + 7x - 6 = 0.
To find the solutions to this equation, we can apply the quadratic formula. This quadratic formula solves equations of the form ax^2 + bx + c = 0
                              x = [ -b ± √(b^2 - 4ac) ] / (2a)
                              x = [ -7 ± √(7^2 - 4(2)(-6)) ] / ( 2(2) )
                              x = [ -7 ± √(49 - (-48) ) ] / ( 4 )
                              x = [ -7 ± √(97) ] / ( 4)
                              x = [ -7 ± sqrt(97) ] / ( 4 )
                              x = -7/4 ± sqrt(97)/4
The answers are -7/4 + sqrt(97)/4 and -7/4 - sqrt(97)/4.
6 0
3 years ago
Which of the following equations has infinitely many solutions? A. 2x + 5(2x + 6) = 12x + 30 B. 2x + 5 = 2 C. 2(x + 5) + 2 = 6x
Nat2105 [25]

Answer:

A. 2x + 5(2x + 6) = 12x + 30

Step-by-step explanation:

Infinitely many solutions means the two sides of the equation will be equal to each other, so B and D can be eliminated. Distribute for A and C to check

A. 2x + 5(2x + 6) = 12x + 30

    2x + 10x + 30 = 12x + 30

    12x + 30 = 12x + 30

C. 2(x + 5) + 2 = 6x + 2(x + 2)

    2x + 10 + 2 = 6x +2x + 4

     2x + 12 = 8x + 4

You only get the same equation for A, therefore A is the correct answer

8 0
3 years ago
Please help em with this one plz
abruzzese [7]
The correct answer is y=6x^(2)-1

Multiple 'm' in y=mx+b By 8
8(3/4)= 24/4= 6
4 0
3 years ago
Which of the following equations is the translation 2 units down of the graph of y = |x |?
Sveta_85 [38]
Y=|x|-2

this can be easily seen by testing f(0) for all functions:
f1(0)=|0-2|=2
f2(0)=|x+2|=2
f3(0)=|x|-2=-2
f4(0)=|x|+2=2

f(0)=|x|=0, because you want to translate it 2 units down -2 is the expected value
7 0
3 years ago
Read 2 more answers
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