Question

8. Five less than nine times a number is the same as the number plus 43. Find the number.
9. The total number of students in a school is 3540. If the number of girls is 135 less than twice the
number of boys. Find the number of girls and boys in school.​

Answer 1

Answer:

8) The number is 6

9) No of girls = 2315

No of boys = 1225

Answer 2

Answer:

8 . 6

9. no of boys = 1135

no of girls. = 2405

Step-by-step explanation:

8. let the number be X

9 X -5 = X +43

43+5 = 9 X - X

48 = 8 X X = 48/8

= 6

9. let no of boys be. X.

no of girls + no of boys = 3540

2 X + 135 + X = 3540

3 X = 3540 -135

X = 3405/3

X. = 1135 no of boys = 1135

no of girls = 2*1135+135 = 2405

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