Respuesta :
Answer:
number of boys = 320
number of girls = 240
Step-by-step explanation:
Total students in school = 560
Ratio of boys to girls = 4 : 3
Add the ratios together: 4 + 3 = 7
Divide the total by this number: 560 ÷ 7 = 80
Now multiply the original ratio numbers by 80 to find the numbers of boys and girls:
⇒ number of boys = 4 x 80 = 320
⇒ number of girls = 3 x 80 = 240
Total students are 560.
- Let boys be 4x and girls 3x
[tex]\\ \rm\hookrightarrow 4x+3x=560[/tex]
[tex]\\ \rm\hookrightarrow 7x=560[/tex]
[tex]\\ \rm\hookrightarrow x=80[/tex]
- Boys°320
- Girls=240