Question

7(9-5 3/5m)-15+25m при m=2 7/10, 4 4/5, 48 очень надо решите плизз

Answer 1

7(9 - 5 3/5m)-15+25m=
63-39.4m-15+25m=
48 - 14.4m
m=2 7/10
48-14.4*2.7=38.88
m=4 4/5
48-14.4*4.8=69.12
m=48
48-14.4*48=48*-13.4=-643.2