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3 years ago

What is the minimum volume of hot air needed to lift a hot air balloon carrying 800kg

Mathematics

1 answer:

nevsk [136]3 years ago

3 0

Answer:

The minimum volume of hot air needed to lift a hot air balloon carrying 800kg

Is 653.1m³

Step-by-step explanation:

This problem bothers on the density of materials in this problem air

Given data

Volume of air V=?

Mass of air m= 800kg

From tables the density of air is

ρ =1.225 kg/m3

Now to solve for the volume we have

ρ=m/v

v=m/ρ

v=800/1.225

Volume v = 653.1m³

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defon

Answer:

The maximum number of days is 5

Step-by-step explanation:

Let

x ----> the number of days

y ---> the total cost to rent a car in dollars

we know that

The fixed rental fee plus the daily fee multiplied by the number of days must be less than or equal to Pasion's budget

The inequality that represent this situation is

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Solve the inequality for x

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therefore

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liberstina [14]

Answer:

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Step-by-step explanation:

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lisov135 [29]

X=7/12 is the awnser

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3 years ago

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-6x+7(1-x)=-4(x-4) if you help thank you so much!!!

salantis [7]

Answer:
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Step by step explanation:
Rearrange terms
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−13+7=−4(−4)
Distribute:
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Subtract 7 from both sides of the equation
−13+7−7=−4+16−7
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Add 4x to both sides of the equation
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Combine like terms
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3 years ago

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Elza [17]

Answer:

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