16 - 4x > 9 - 5x Add 5x to both sides
16 + x > 9 Subtract 16 from both sides
x > -7
Answer:
Grade≥69(at least 69)
Step-by-step explanation:
(77+69+65+x)/4=70
x=69
so he must get 69 or more
D. 7.2lbs To find the range all you have to do is subtract the smallest number from the group from the biggest number. And in this case that would be 9.9- 2.7
Sub tract the 3m and you get 2n=8-3m then divide by 2 and you get n=8/2 - 3m/2 and that can be reduced to n= 4 - 3m/2