1st number = x
2nd number = 3x
3rd number = 2x-10
x +3x + 2x-10 =92
6x - 10 = 92
6x =102
x = 102/6
x = 17
1st number = 17
2nd number = 17*3 = 51
3rd number = 17 *2 = 34-10 = 24
17 + 51 + 24 = 92
3 numbers are 17, 51 and 24
4:3 8:6 24:18 20:15 is the complete ratio table.
<h2>ANSWER:</h2><h2 /><h2>
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<u>EXPLA</u><u>NATION</u><u>:</u></h2>
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<u>HOPE</u><u> IT</u><u> HELPS</u><u> YOU</u>
<u>CAN</u><u> </u><u>YOU</u><u> BRAINLEST</u><u> ME</u>
9514 1404 393
Answer:
21
Step-by-step explanation:
Rearranging the given ratio, we can find the ratio of boys to the total.
boys : (boys +girls) = 7 : (7+8) = 7 : 15
Then the number of boys is ...
(7/15)(45) = 21
There are 21 boys in the classroom.