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Mandarinka [93]
3 years ago
9

13. A number half of that number end one-third of that number are added. The result IS 22. What 15 the number

Mathematics
2 answers:
nordsb [41]3 years ago
6 0
X=is the number looked for.
x/2=is the half of "x".
x/3=is the one-third of the "x".
We suggest this equation:

x+(x/2)+(x/3)=22
Least common multiple=6
6x+3x+2x=132
11x=132
x=132/11=12

Te number is 12

To check:
A number (12)+ half of that number (6)+ the one-htird of that number(4) is:22

12+6+4=22
Alexxandr [17]3 years ago
5 0

Let the no. be x

x+x/2+x/3=22

6x+3x+2x/6=22

11x/6=22

11x=132

x=12

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Answer:  The answer is \textup{M}+\textup{H}\leq 10~~\textup{and}4\textup{M}+7\textup{H}\leq 90.


Step-by-step explanation: Given that a school wants to put on a dance recital. The programs of Middle school dancer will be short of 4 minutes each and programmes of High school performers will be long of 7 minutes each.

Number of middle school dances is "M" and number od high school dances is "H".

Since there cannot be more than 10 dances all together, so fisrt inequality can be written as

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Thus, the pair of inequalities is

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