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balu736 [363]
3 years ago
7

Express the repeating decimal 2.1¯ as a fraction. 21/10 20/9 19/9 19/8

Mathematics
2 answers:
Oliga [24]3 years ago
6 0

Answer:

21/10

Step-by-step explanation:

Trust Me

zlopas [31]3 years ago
5 0
21/10 because 2. is 21 and .1 is 10
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Human population numbers are in constant flux. Suppose a country has a population of 20 million people at the start of one year
Sati [7]
  • Birth=+600000
  • Death=-350000
  • Immigrants=+100000
  • emigrants=-5000

. Population Change:-

\\ \sf\longmapsto 600000-350000+100000-5000=+350000

Population:-

\\ \sf\longmapsto 2000000+350000=2350000

7 0
3 years ago
Read 2 more answers
Please help and explain with these 2 math questions!!!!!!
Volgvan

1)  -10x+y=4

Now, you should substitute x in every situation.

* x=-2 <em>=> -10*(-2)+y=4... 20+y=4... <u>y=-16</u></em>

<em />* x=-1 =>-10*(-1)+y=4... 10+y=4... <u>y=-6</u>

<u />*x=0 => -10*0+y=4... <u>y=4</u>

<u />* x=1 =>  -10*1+y=4... -10+y=4... <u>y=14</u>

<u />* x=2 => -10*2+y=4... -20+y=4... <u>y=24</u>

<u>2)</u> -5x-1=y

For example: x=0

-5*0-1=-1

<u>
</u>



6 0
3 years ago
|x+2|+4=11<br> A) x=5,-9
Lisa [10]

Answer:

the mod always gives positive answers

so the answer will be

Step-by-step explanation:

x+2+4=11

x+6=11

x=11-6

x=5

answer is x is 5

8 0
3 years ago
Read 2 more answers
A&amp;B share the cost in a ratio 3:2. A pays £125, how much does B pay?
mrs_skeptik [129]
3 125
---= ------
2 ?

2×125
--------
3

Ans.£83.33
6 0
4 years ago
What fraction of the students in the class named baseball their favorite sport
mojhsa [17]

now, let's take a peek at the denominators, we have 3 and 8 and 12, we can get an LCD of 24 from that.

Let's multiply both sides by the LCD of 24, to do away with the denominators.

so, let's recall that a whole is "1", namely 500/500 = 1 = whole, or 5/5 = 1 = whole or 24/24 = 1 = whole.  So the whole class will yield a fraction of 1/1 or just 1.

\bf ~\hspace{7em}\stackrel{\textit{basketball}}{\cfrac{1}{3}}+\stackrel{\textit{soccer}}{\cfrac{1}{8}}+\stackrel{\textit{football}}{\cfrac{5}{12}}+\stackrel{\textit{baseball}}{x}~=~\stackrel{\textit{whole}}{1} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{24}}{24\left(\cfrac{1}{3}+\cfrac{1}{8}+\cfrac{5}{12}+x \right)=24(1)}\implies (8)1+(3)1+(2)5+(24)x=24 \\\\\\ 8+3+10+24x=24\implies 21+24x=24\implies 24x=3 \\\\\\ x=\cfrac{3}{24}\implies x=\cfrac{1}{8}

4 0
3 years ago
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