One hundred twenty and four tenths

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

What is the result of adding the system of equations? 2x+y=4 3x-y=6