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Llana [10]
3 years ago
6

Thomas has constant speeds for both running and walking. When a down-escalator is moving, Thomas can run down it in

Mathematics
1 answer:
irakobra [83]3 years ago
3 0

Answer:

40 seconds

Step-by-step explanation:

Ratio of 15:30 = 1:2

             20:x

x = 20 x 2 using ratio, also stop putting these Maths challenge qs on website.

x = 40 :)

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What is the constant in the following expression?
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Answer:

15 is the constant

Step-by-step explanation:

Constant is a number which doesn't change.

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algol [13]

Answer:

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Step-by-step explanation:

Factor the following:

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Factor the quadratic 3 x^2 + 20 x + 25. The coefficient of x^2 is 3 and the constant term is 25. The product of 3 and 25 is 75. The factors of 75 which sum to 20 are 5 and 15. So 3 x^2 + 20 x + 25 = 3 x^2 + 15 x + 5 x + 25 = 5 (3 x + 5) + x (3 x + 5):

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josiah is taking his friends to the movies each ticket cost $10, and popcorn is $5 a bag. there is a 3$ service fee for the enti
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