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13 votes
Please help with my math

Please help with my math-example-1
User Ritzk
by
6.4k points

1 Answer

6 votes

Answer:

150 boys

Explanation:

equation:

⇒ 5x + 4x = 270

add like terms:

⇒ 9x = 270

divide 9 on both sides:


(9x)/(9) = (270)/(9)

solve:

⇒ x = 30

take original equation and subtitute 30 for x;

⇒5 x 30 + 4 x 30 = 270

⇒ 150 + 120 = 270

We can see that if there were 270 students, 150 would be boys and 120 would be girls.

User Dima Vishnyakov
by
5.8k points
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