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just olya [345]
2 years ago
6

X+(x+2)+(x+4)+(x+6)=4x+12=212

Mathematics
1 answer:
Mrac [35]2 years ago
4 0

(x+(x+2)+(x+4)+(x+6))=4x+12=212

x+x+x+x(2+4+6)=4x+12=212

4x (2+4+6)=4x+12=212

4x(6+6)=4x+12=212

12+4x=4x+12=212

<u>-12            -12   -12</u>

4x=4x=200

<u>/4  /4  /4</u>

<u>x=x=50</u>

<u>x=50</u>

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There are 870 boys and 800 girls in a school
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Step-by-step explanation:

Given:

No. of boys = 870

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Probability that a girl chosen studies Spanish = \dfrac{3}{5}

the number of boys in the school who study Spanish :

\dfrac{2}{3}\times 870=290\times 2=580

the number of girls in the school who study Spanish :

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Therefore, total number of students who study Spanish would be :

480+580=1060

8 0
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A wise man once said “400 reduced by 3 times my age is 244.” How old is the wise man?
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Step-by-step explanation:

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