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Ivenika [448]
2 years ago
15

Brainliest reward need brief working out

Mathematics
1 answer:
julia-pushkina [17]2 years ago
8 0

Answer:

  1. 125 cm³; 88.8 cm³; 1650 cm³; 0.11 m³

  2. about 1.47 kg

  3. can't tell what the volume of 1 jar is

Step-by-step explanation:

The relationship between volume, mass, and density is ...

  mass = volume × density

Solving for volume, we find ...

  volume = mass ÷ density

__

(a) 50 g/(0.4 g/cm³) = 125 cm³

(b) 770 g/(8.67 g/cm³) ≈ 88.8 cm³ . . . (rounded to 3 significant figures)

(c) 4000 g/(2.42 g/cm³) ≈ 1650 cm³ . . . (rounded to 3 significant figures)

(d) 80 kg/(720 kg/m³) ≈ 0.11 m³ . . . (rounded to 2 significant figures)

_____

The volume of the cylinder is ...

  V = πr²h

  V = π(4 cm)²(15 cm) = 240π cm³ ≈ 754.0 cm³

Using the above relation, we find the mass to be ...

  mass = (754.0 cm³)(1.95 g/cm³) ≈ 1470 g = 1.47 kg

_____

We cannot tell if the volume of each jar is 360 liters, or if that is the total volume of all 6 jars. Either way, we suspect a units problem, as the jars would have to be extremely large and unusually thin relative to what we usually think of as a jar for jam (0.77 m diameter; 0.2 mm thick). The density of the jam would be roughly 10 times the density of air, if that is the volume of all 6 jars. The problem would be more sensible if the units of volume were mm³, and the given volume is that of one jar.

The mass of jam in one jar is (5400/6 -200) = 700 g. Divide that by what you think the volume of one jar is in cm³ to find the density in g/cm³. (For comparison, the density of air is about 0.0012 g/cm³.)

_____

<em>Additional comment</em>

We have rounded the answers to 2 or 3 significant figures. In most cases, this is more than would be justified by the number of significant figures in the given measurements. For purposes of ongoing calculations, it is useful to keep intermediate results to at least 1 more significant figure than required for the answer.

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Step-by-step explanation:

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An automobile purchased for 22000 is worth 2500 after 5 years what’s the value 3 years after it is purchased
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6 0
2 years ago
Tyrell katy and lucy were eating grapes. Tyrell ate twice as many grape as katy, and lucy ate half as many grapes as katy. If ka
Vesnalui [34]

Answer:

21 grapes.

Step-by-step explanation:

We have been given that Tyrell ate twice as many grape as Katy. Lucy ate half as many grapes as Katy. Katy ate 6 grapes. We are asked to find the total number of grapes that all of them eat in all.

First of all, we will find twice of 6 grapes to find number of grapes eaten by Tyrell.

\text{Grapes eaten by Tyrell}=2\times 6

\text{Grapes eaten by Tyrell}=12

Now, we will find half of 6 to find number of grapes eaten by Lucy.

\text{Grapes eaten by Lucy}=\frac{6}{2}

\text{Grapes eaten by Lucy}=3

\text{Grapes eaten by them in all}=6+12+3

\text{Grapes eaten by them in all}=21

Therefore, the three of them eat 21 grapes in all.

4 0
3 years ago
4.930 53.2 3.867 23 least to greatest
Debora [2.8K]
LEAST
3.867
4.930
23
53.2
GREATEST

Hope I helped some!
4 0
3 years ago
Read 2 more answers
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