Mathematics, 20.04.2020 21:36 imalivingpotato
A helium-filled blimp stays aloft since helium is less dense than regular air, so helium will rise above regular air. The density of helium is about
1.1 kg/m31.1\text{ kg/m}^3
1.1 kg/m
3
1, point, 1, start text, space, k, g, slash, m, end text, cubed
less than regular air, which means a cubic meter of helium can lift about
1.1 kg1.1\text{ kg}
1.1 kg
1, point, 1, start text, space, k, g, end text
. A blimp with a mass of
2.13Γ105 kg2.13\times10^5\text{ kg}
2.13Γ10
5
kg
2, point, 13, times, 10, start superscript, 5, end superscript, start text, space, k, g, end text
can carry as much as
2Γ105 m32\times10^5\text{ m}^3
2Γ10
5
m
3
2, times, 10, start superscript, 5, end superscript, start text, space, m, end text, cubed
of helium.
If the average mass of a person with luggage is
102 kg10^2\text{ kg}
10
2
kg
10, squared, start text, space, k, g, end text
, what is the number of passengers the blimp can carry?
Answers: 2
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Kevin has a spinner that has 10 equal sections and 2 sections of each colorβred, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.
Answers: 1
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Problem 3 a bank charges a service fee of $7.50 per month for a checking account. a bank account has $85.00. if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative
Answers: 2
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