atifatifatif172000 atifatifatif172000

15-03-2022
Mathematics

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In a class there are 21 boys and girls make up 0.4 find the total students in class

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jimrgrant1 jimrgrant1

15-03-2022

Answer:

35

Step-by-step explanation:

let x be the number of students in the class

then number of girls = 0.4x , so

x = 21 + 0.4x ( subtract 0.4x from both sides )

0.6x = 21 ( divide both sides by 0.6 )

x = 35

the total number of students is 35

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