Step-by-step explanation:
this is my answer...sorry if I made any mistake
Answer:
480m
Step-by-step explanation:
First we have to find the perimeter of the field.
We know that the area is 144m and that the field is a square.
Since a squares sides are all equal, we can do
, which is 12m.
So, one side of the field is 12m; now we just find the perimeter which is easy since its a square. 12*4=48m
If Andrea walked around it 10 times, then we just multiply the perimeter by 10
48*10=480m
I have done this question yesterday it is 1 and 3
Answer:
v = 875
Step-by-step explanation:
0.01v + 0.09(8000-v) = 650
Multiply the parenthesis
0.01v + 720 - .09v = 650
Combine like terms
720 - 0.08v = 650
Add 0.08v to both sides
720 = 650 + 0.08v
Subtract 650 from both sides
70 = 0.08v
Divide by 0.08 on both sides
v = 875
Hope this helps :)