how can i using fprintf to write unit for a data?

Hi, now i trying to use fprintf to write a sentence. i want to Matlab return as below: "Max value of time is: 0.024 [s] " And i use code (below). But i can't do it. Can somebody help me? Thank you so much! My code:

time_max=0.024;
fprintf('Gia tri thoi gian ung voi chuyen vi lon nhat: %d \n',time_max,'[s]');

Answer 1

[the cyclist]

time_max=0.024;
fprintf('Gia tri thoi gian ung voi chuyen vi lon nhat: %7.3f [s]\n',time_max)

[Le Dung]

Thank you so much.

Answer 2

[Walter Roberson]

time_max=0.024;
fprintf('Gia tri thoi gian ung voi chuyen vi lon nhat: %g %s\n',time_max,'[s]');

Note the change from %d to %g as your data is not integer.

[Le Dung]

thank you so much