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Marina86 [1]
3 years ago
6

How many significant figures are in each of the following measurements? A. 0.4004 mL. B. 6000 g. C. 1,000 30 km. & D. 400. m

m
Mathematics
1 answer:
OLga [1]3 years ago
6 0
The rules of significant figures are: 1. all non zeros are significant. 2. trailing zeros are significant. 3. zeros between non-zeros are signifincant. Hence, applying these to the given. 
A. 4 sig figs
B. 1 sig fig
C.6 sig figs
D.1 sig fig
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Answer:

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Step-by-step explanation:

Given:

Total number of students enrolled in an introductory biology course = 364

There are 5 boys to every 8 girls in the course.

To find how many boys are in the course.

Solution:

Since, there are 5 boys to every 8 girls in the course.

So, ratio of boys to girls enrolled in the course = 5 : 8

Let the number of boys in the course be = 5x

Then number of girls in the course will be =  8x

Total number of students would be given as:

⇒ <em>Number of boys + Number of girls</em>

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Total number of students given = 364.

Thus, we have:

13x=364

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Dividing both sides by 13.

\frac{13x}{13}=\frac{364}{13}

∴ x=28

So, number of boys in the course will be = 5\times 28 = 140

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