169=13*13
13-7=6
old area was 6*6=36
then, the lenght is 6
Answer:
20. y=-2x+7
Step-by-step explanation:
Answer:
(4x+1)= 81
Step-by-step explanation:
4x+1= 81
4x= 81 - 1
4x= 80
x= 80/4
x= 20
Multiply both sides by 4/3 to isolate h.
60 * 4/3 = 3/4h * 4/3
Now we just have to calculate
80 = h
h is equal to 80
