Question

. Form a linear equation for the situation: The number of boys and girls in a class are in the ratio 5:7. The

number of boys is 8 more than the number of girls.​

Answer 1

Answer:

5x - 7y = 8

Step-by-step explanation:

let the number of boys = x

and number of girls = y

boys = 5x

girls = 7y

5x = 7y + 8

5x - 7y = 8

Answer 2

Answer:

let the number girls be x

the number of boys is 8 more than number of girls

so, number of boys = number of girls +8

number of boys = x +8

hence, number of boys and girls in a class are in

ratio 5:7.

so, atq, x/x+8 =5/7

7x=5x +40

7x-5x=40

2x=40

x=40/2

x=20

so, number of girls=20

hence, number of boys =x+8

number of boys=20+8

number of boys=28