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3 years ago

What happens to air when it is heated

Mathematics

1 answer:

solmaris [256]3 years ago

6 0

Answer:

it rises

Step-by-step explanation:

Hot air rises because when you heat air it expands causing it to become less dense than the air around it making it float/rise up.

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Help me please?! I’ll give brainliest

aliina [53]

Answer: 8/27 cubic yards

Step-by-step explanation:

Volume of cube = side length ³

(2/3)³ = 2³ / 3³ = 8 / 27

5 0

3 years ago

Philip writes 2 pages per hour. How many hours will Philip have to spend writing this week

lukranit [14]

Answer:

8 hours

Step-by-step explanation:

If he writes 2 pages a hour and needs 16 pages, then you would have to divide 16 by 2 which is 8.

To double check that, you can multiply 8 by 2 which is 16.

You answer is 5 hours.

3 0

4 years ago

Read 2 more answers

A litre bottle of KERPOW washing up liquid costs £1.95.

Alex_Xolod [135]

Answer:

500 washes

Step-by-step explanation:

Number of washes

Total volume / Volume used each time
5 L / 10 mL

But remember : 1 L = 1000 mL

5000 mL / 10 mL
500 washes

4 0

2 years ago

Your friend's heart beats 18 times in 15 seconds when at rest. While running, your friend's heart beats 25 times in 10 seconds.W

prisoha [69]

That is gonna be a massive heart attack.

4 0

4 years ago

Find the ratio of the area of triangle XBY to the area of triangle ABC for the given measurements, if BY = 3, YC = 2

Mazyrski [523]

Answer:

The ratio of the area of triangle XBY to the area of triangle ABC is $\frac{9}{25}$

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor and the ratio of its areas is equal to the scale factor squared

In this problem

Triangles XBY and ABC are similar, because the corresponding internal angles are congruent

see the attached figure to better understand the problem

step 1

Find the scale factor

Let

z-------> the scale factor

$z=\frac{BY}{BC}$

we have

$BY=3\ units$

$BC=2+3=5\ units$

substitute

$z=\frac{3}{5}$

step 2

Find the ratio of the area of triangle XBY to the area of triangle ABC

Remember that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

we have

$z=\frac{3}{5}$ -----> scale factor

$z^{2} =(\frac{3}{5})^{2} =\frac{9}{25}$

5 0

4 years ago

Read 2 more answers