question 1 : last night , I do not order a milkshake because I was not thirsty.

question 2 : how much time do you spend on math homework each day?

question 3 : eating fruits and vegetables is the healthiest way to stay fit.

question 1 : last night , I do not order a milkshake because I was not thirsty.

question 2 : how much time do you spend on math homework each day?

question 3 : eating fruits and vegetables is the healthiest way to stay fit.

question 1 : last night , I do not order a milkshake because I was not thirsty.

question 2 : how much time do you spend on math homework each day?

question 3 : eating fruits and vegetables is the healthiest way to stay fit.

a, vì M là trung điểm của đoạn thẳng AB 

nên AM=MB=1/2.AB=2CM

b,

số học sinh giỏi lớp 6A là:

40.7/20=14(học sinh)

số học sinh trung bình của lớp 6A là:

40.1/8=5(học sinh)

số học sinh khá lớp 6A là:

14+5=19( học sinh )

số học sinh yếu lớp 6A là:

40-( 14+5+19)=2( học sinh)

đáp số :

a,

=2/3-16/3

= -14/3

b,

=( 3/7+4/7) + ( -6/19+ -13/19)

=1+ (-1)

=0

c,

= 3/5.(8/9-7/9+26/9)

= 3/5.(1/9+26/9)

=3/5.3

=9/5