Sagot :
x, y - the numbers
The ratio of x to y is 2:3.
[tex]\frac{x}{y}=\frac{2}{3} \\ 3x=2y \\ x=\frac{2}{3}y[/tex]
Their product is 600.
[tex]xy=600 \\ \\ \hbox{subsitute } \frac{2}{3}y \hbox{ for x and solve for y:} \\ \frac{2}{3}y \times y=600 \\ \frac{2}{3}y^2=600 \\ y^2=600 \times \frac{3}{2} \\ y^2=900 \\ y=\pm \sqrt{900} \\ y=-30 \ \lor \ y=30 \\ \\ \hbox{the numbers are positive so y=30} \\ xy=600 \\ x \times 30=600 \\ x=\frac{600}{30} \\ x=20[/tex]
The numbers are 20 and 30.
The ratio of x to y is 2:3.
[tex]\frac{x}{y}=\frac{2}{3} \\ 3x=2y \\ x=\frac{2}{3}y[/tex]
Their product is 600.
[tex]xy=600 \\ \\ \hbox{subsitute } \frac{2}{3}y \hbox{ for x and solve for y:} \\ \frac{2}{3}y \times y=600 \\ \frac{2}{3}y^2=600 \\ y^2=600 \times \frac{3}{2} \\ y^2=900 \\ y=\pm \sqrt{900} \\ y=-30 \ \lor \ y=30 \\ \\ \hbox{the numbers are positive so y=30} \\ xy=600 \\ x \times 30=600 \\ x=\frac{600}{30} \\ x=20[/tex]
The numbers are 20 and 30.
First ratio - 2
second ratio - 3
sum of ratio - 2+3 = 5
first +ve no. = 2/5 × 600
240 ans.
second +ve no. = 3/5 × 600
360 ans.