Answer:

Step-by-step explanation:
Here first open the inner parentheses and use the distributive property,

Answer:
v=520 -10t
Step-by-step explanation:
the rate of decrease is given a variable to calculate the rate of change. v is represented by 520 - the number of minutes.
Answer:
Step-by-step explanation:
If 2in represented 17ft
Then 51ft will give (51×2)/17 in
= 6in
2.5 is also on the top and try multiplying 2.5 and 10
s = 2(lw + lh + wh)
Divide each side by 2 : s/2 = lw + lh + wh
Subtract 'lh' from each side: s/2 - lh = lw + wh
Combine the 'w' terms: s/2 - lh = w(l + h)
Divide each side by (l + h): (s/2 - lh) / (l + h) = w