1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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 :)

You might be interested in
How do I get the answer??
Lubov Fominskaja [6]

Answer:

4√10

Step-by-step explanation:

Hello!

Let's first simplify the radical.

We can do this by expanding the radical:

We need to pull out a perfect square factor to expand a radical and simplify it. In 45, we have 9 and 5 multiplied, and 9 is a perfect square.

Let's work with √45:

  • √45 can be written as √9 * √5 (using the rule √ab = √a * √b)
  • √9 simplifies to 3, so it is 3√5

Now we can simplify the operation in the parenthesis by combining like terms:

  • 3√5 + √5
  • √5 + √5 + √5 + √5
  • 4√5

Now using the same rule as above, we can multiply the values:

  • √2(4√5)
  • 4√10

Your solution is 4√10

3 0
2 years ago
SIMPLE INTEREST
cupoosta [38]
The answer would be 5 years. I=PxRxT.
3 0
3 years ago
Read 2 more answers
1. The scale on a map reads 3 inches = 25 miles.
KonstantinChe [14]

Answer:

D. 62.5

Step-by-step explanation:

2 ways

1.

7.5 ÷ 3 = 2.5

25 times 2.5 = 62.5

2.

3/7.5 = 25/x

3x = 187.5

187.5 ÷ 3 = 62.5

3 0
2 years ago
Please help me asap !!
Natasha2012 [34]

Answer:

3.5

Step-by-step explanation:

(42 - 14)/(12 - 4) = 28/8 = 7/2 = 3.5

5 0
2 years ago
8.7 x 10-4 =<br><br> A) 0.000087 B) 0.00087 C) 8,700 D) 87,000
Gre4nikov [31]
It is B, I promise h gb in h x
3 0
3 years ago
Read 2 more answers
Other questions:
  • A rectangle has a perimeter of 70 centimeters and length of 21 cm what is its width
    11·1 answer
  • A rectangle has a length of 6cm by 8cm. Which is the length of a diagonal of the rectangle?
    14·1 answer
  • Which number has a value of 800,000,000
    10·1 answer
  • Question 20 need an answerw
    7·1 answer
  • What is the area of the composite figure?
    7·1 answer
  • $0.25 per ounce mags spent a total of $2.65 on pineapple
    6·1 answer
  • Which transformation represents a reflection over the x-axis?
    8·2 answers
  • Really need help on this math question! “Jill is draining her pool before winter arrives.
    6·1 answer
  • PLZ HELPPPPP QUICKLYYYY!!!!!!!!!!!!!
    10·1 answer
  • This is so hard to me i need help <br> fast
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!