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spin [16.1K]
4 years ago
12

What is the difference, in hours and minutes, between these times? 11:25 and 14:10

Mathematics
1 answer:
Sholpan [36]4 years ago
6 0

Answer:

Convert 20 m/s into kilometer per hour (round to 1 decimal points)

3 points

72 km/km

27 km/h

72 s/m

72 km/h

Step-by-step explanation:

You might be interested in
Sound waves travel at a speed of 330.0 m/s how long does it take for the sound of thunder to travel 1.5 km?
Lunna [17]

Answer:

4.5454 seconds

Step-by-step explanation:

1.5 km is equal to 1,500 m

1,500 m divided by 330.0 m/s = 4.5454 s

7 0
3 years ago
Mrs. Lowndes was building a play house for her grandson.
Vedmedyk [2.9K]

Answer:

21.25ft

Step-by-step explanation:

To solve for this, all you need to do is find a ratio proportional to the given. The given shows the following ratios:

\dfrac{2in}{5ft}=\dfrac{8.5in}{x}

All you need to do is solve for x. You can do this by first cross multiplying:

\dfrac{2in}{5ft}=\dfrac{8.5in}{x}\\\\2in(x)=8.5in(5ft)\\\\2xin=42.5in/ft\\\\Divide\;both\;sides\;by\;2in\\\\\dfrac{2xin}{2in}=\dfrac{42.5in.ft}{2in}\\\\x=21.25ft

8 0
4 years ago
A ladder is placed 3.5 feet away from the base of a tree. If the ladder forms a 53° angle with the ground, how many feet up the
Orlov [11]

Answer:

The ladder will reach 4.6 ft up the tree.

Step-by-step explanation:

When we draw out our triangle, we should see that we are given the horizontal leg and are trying to find the vertical leg. We use tan∅ to help solve:

tan53° = x/3.5

3.5tan53° = x

x = 4.64466

4 0
3 years ago
Chang reads 3/4 books in 4/5 hours, what is the unit rate per hour?
deff fn [24]

Answer:

0.8

Step-by-step explanation:

5 0
3 years ago
Find a polynomial, which, when added to the polynomial 5x^2–3x–9, is equivalent to:
djyliett [7]
So you need to turn 5x^2 -3x -9 into 2x - 3. 

Well first you need  to take 5x^2 out by subtracting 5x^2 (-5x^2). 

Then -3x needs to become 2x by adding 5x (+5x). 

Finally -9 needs to become -3 by adding 6 (+6).

Put all the things you did together to make a polynomial.
-5x^2 + 5x + 6
8 0
3 years ago
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