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tiny-mole [99]
2 years ago
12

A weather balloon holds 2,850 cubic meters of helium. The density of helium is 0.1685 kilograms per cubic meter. How many kilogr

ams of helium does the balloon contain? Please round your answer to the nearest whole number. Only enter a numerical value in the answer blank
Mathematics
2 answers:
nekit [7.7K]2 years ago
5 0

Answer:

480

Step-by-step explanation:

Density of a substance is mass per unit volume, Mathematically expressed as

d=m/v

Making m the subject of the formula then

m=dv

Here, d is the density, m is the mass of helium and v is the volume of helium

Given density as 0.1685 kg/m³ and volume as 2850 m³ then jts mass will be equivalent to

Mass=2850m³*0.1685kg/m³=480.225 kg

Rounding off to the nearest whole number, the mass is approximately 480 kg

zaharov [31]2 years ago
5 0

Answer: 480

Explanation: I took the test and this answer was correct.

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A radio station is giving away a $100 bill to every 30th caller and movie tickets to every 40th caller. Which call will be the f
Ymorist [56]

Answer:

120th caller

Step-by-step explanation:

According to the problem, calculation of the given data are as follows,

$100 bill = 30th caller

Movie tickets = 40th caller

So, to find out first to win both prizes, we will use LCM method,

LCM of 30 and 40 =       10 | 30 , 40

                                            | 3    , 4

LCM of 30 and 40 = 10 × 3 × 4 = 120

Hence, 120th caller will be the first to win both prizes.

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3 years ago
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murzikaleks [220]
Their least common multiple is 12.
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3 years ago
If f(x) = -3x - 5 and g(x)= 4x - 2, find (f-g) (x).
Eddi Din [679]

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Step-by-step explanation:

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So

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4 0
3 years ago
Question 3
zlopas [31]

Answer:

Area = 19.05 feet squared

Step-by-step explanation:

By applying sine rule in ΔABC,

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sin(60°) = \frac{BC}{AC}

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Therefore, answer is Area = 19.05 ft squared.

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