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aivan3 [116]
3 years ago
12

2. A student measured the mass and volume of three different-sized samples of sand. He then calculated the

Mathematics
1 answer:
Aleks04 [339]3 years ago
3 0

9514 1404 393

Answer:

  we expect the results to have less spread

Step-by-step explanation:

The spread between the maximum and minimum is almost 1/3 of the average of those values (0.8 vs 2.6). We expect repeated measurements of the same physical value to be well within 5% of their mean if they are done carefully.

The investigation has errors because the spread is too great.

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Five times a number (n) subtracted from 50 is 15
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50 - 5n = 15

if you need to find the number n then
50 - 5n = 15
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3 years ago
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As a centerpiece for her design, Hevesh build a tower 72 inches tall made of dominoes that are 2 2/5 inches tall. How many rows
kondor19780726 [428]

Answer:

72 divided by 2 2/5 (or 2.4) = 30 in a row

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Use the points (0, 4) and (-2, 3) to find the slope of the line and give the equation of this line.​
Sauron [17]

Answer:

Choice C:   m=\frac{1}{2}; y=\frac{1}{2} x+4

Step-by-step explanation:

To find your slope do:

\frac{y^2-y^1}{x^2-x^1}

\frac{3-4}{-2-0}=\frac{-1}{-2} =\frac{1}{2}

that's how you get 1/2

4 is just the y-int.

6 0
2 years ago
Seth's father is thinking of buying his son a summer movie pass for $30 dollars. With the pass, matiness cost $4 each.
PilotLPTM [1.2K]

Answer:

Seth saved $90.

Step-by-step explanation:

1.Find out how much would be spent without buying the movie pass.

Multiply the amount of money that one would spend for each movie, by the number of movies one saw.

8 * 30 = 240

2.Find out the amount that was actually spent

Multiply the amount that was actually spent on each movie, by the number of movies that were seen. Then add the additional cost of the pass.

(4 * 30) + 30

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3. Find the difference between the two values.

Subtract the amount that one was supposed to spend by the amount one did spend.

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3 years ago
Solve for x 5-x/3=-15
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x is equal to 60

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