Of the 24 students in greg’s class, 3/8 ride the bus to school. how many students ride the bus

9 students

Step-by-step explanation:

Just multiply the number of people by the fraction.

24× 3/8 =9

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.