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Bas_tet [7]
3 years ago
11

Hot air is less dense than cool air, so hot air will rise above cool air. Increasing the air temperature inside a hot air balloo

n makes it lighter than the surrounding air, so the balloon can lift up. The density of hot air is about 0.25kg/m^3 less than that of cool air, which means a cubic meter of hot air can lift about 0.25kg.
What is the minimum volume of hot air needed to lift a hot air balloon carrying
Mathematics
1 answer:
madam [21]3 years ago
6 0

Answer:

It’s c

Step-by-step explanation:

I just did it

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Hey! how's your Saturday going :) <br> (if it's Saturday for you)
Bad White [126]

Answer:

great :) wbu

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
A holiday toy drive is putting together baskets for children they’re 84 toys and 56 books if each basket or see the same number
BaLLatris [955]

Answer:

28

Step-by-step explanation

we can use Greatest common divisor to solve

84 and 56 Greatest common divisor is 28(you can try)

so is 28 basket and every basket has 3 toys and 2 books

3 0
3 years ago
What is the answer for this question?
drek231 [11]

Answer: B

Step-by-step explanation:

(-3, -1) and (4, 5) are the points given

Slope formula: \frac{Y2-Y1}{X2-X1}

\frac{5--1}{4--3} = \frac{5+1}{4+3} \\

\frac{5+1}{4+3} = \frac{6}{7}

8 0
3 years ago
Line AB passes through A(-3, 0) and B(-6, 5). What is the equation of the line that passes through the origin and is parallel to
amid [387]

parallel means "same slope (m)"

m = \frac{y2 - y1}{x2 - x1} = \frac{0 - 5}{-3 - (-6)} = \frac{-5}{-3 + 6} = \frac{-5}{3}

Now, input the point (0, 0) and the slope (\frac{-5}{3}) into the Point-Slope formula:

y - y₁ = m(x - x₁)

y - 0 = \frac{-5}{3}(x - 0)

    y = \frac{-5}{3}x

 3y = -5x    <em>multiplied both sides by 3</em>

 0   = -5x - 3y  <em>subtracted 3y from both sides</em>

Answer: C


7 0
3 years ago
In order to make 6 dozen cookies, you must use 3 eggs in the batter. How many eggs would be required to make 48 dozen cookies? U
Brrunno [24]

24

Step-by-step explanation:

Well 6 times 8 is 48 so

8 times 3 is 24

7 0
3 years ago
Read 2 more answers
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