Forty-eight 6th graders bring their lunch to school. This is thirty percent of the 6th-grade class. How many students are in the 6th grade? (number only to the nearest whole)

160 students in the 6th grade.

Step-by-step explanation:

There are 160 students in the 6th grade because if 48 students is 30 percent then 10 percent is 16.  Meaning that 100 percent would be 160.

Students l Percent

l

48         = l     30

16          = l     10

160        = l     160

^ Hope that makes sense! (tried my best to do a ratio table :/ )

Feel free to ask questions!

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m