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Cloud [144]
3 years ago
14

How many atoms are in 115 grams of calcium

Mathematics
1 answer:
Keith_Richards [23]3 years ago
7 0
<span> 6.022 x 1023 i think thats how much 

</span>
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If the area of the rectangle is twenty-four-and-thirty-two-hundredths square inches, what’s the measurement of the width?
GuDViN [60]

Answer:

Can't answer this without knowing the height of the rectangle ...

Step-by-step explanation:

6 0
2 years ago
Could anyone help me on number 3?
xeze [42]

Answer:

n = 2m-4

Step-by-step explanation:

n+2/m-1=2

n+2=2(m-1)

n+2=2m-2

n=2m-2-2

n=2m-4

6 0
2 years ago
What does 1 5/6 × 2 equal
kotykmax [81]
Make it a improper fraction first.
11/6 * 2 = 22/6
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4 0
2 years ago
Read 2 more answers
A survey asked students whether they would like a drama club, a step team, both clubs, or neither club. The results are below:
Dmitry [639]

Hi, you've asked an incomplete question. Here are the remaining questions:

a) Describe what each region in the Venn diagram represents.

Region I: In drama club, not in step team.

Region II: In both clubs.

Region III: In step team not in drama.

Region IV: Not in either club.

b) How many students were in only one of the two clubs?

c) How many students were in the drama club or in the step team?

d) How many students were surveyed?

Attached is the Venn diagram depicting the regions.

Explanation:

b) By adding the number of students that like drama club and those that like step club we can derive the answer:  34 + 27 = 61.

c) By adding 34 + 27 + those that like both (14) = 75.

d) The total number of students surveyed is gotten by summing any number in attached the diagram: 34 + 27 + 14 + 13 = 88.

7 0
3 years ago
Write the ratio of the area of a circle with radius r to the circumference of the same circle
Goshia [24]

Answer:

\frac{r}{2\pi r} =\frac{1}{2\pi }

Step-by-step explanation:

A ratio is a comparison of two quantities and can be written in several forms including fractions. It is most commonly written in fraction form or a:b.

To write a ratio, we count the number of each quantity we are comparing or use the variable for that quantity. We write radius:circumference. Recall, the circumference of a circle can be found using \pi d or 2\pi r.

We write r: \pi d  or r:2\pi r.

We can also write in fraction form:

\frac{r}{\pi d} or \frac{r}{2\pi r} =\frac{1}{2\pi }


6 0
3 years ago
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