P = 2l + 2w
p-2w = 2l
p-2w/2 = l
Substitute the perimeter and you should be able to work it out
This formula means that a(n) for n, when n is the term number, will give you the term. Meaning, we just have to plug in 55 for n.
a(55) = -1 + 3(55 - 1)
a(55) = -1 + 3 * 54
a(55) = -1 + 162
a(55) = 161
Answer:
I think the answer is $20.
Step-by-step explanation:
because if he cant make change for $5,$10,$50 then in my opinion the only possible answer could be $20.
I Hope you get it right!!
Find the ratio of 4/15 lb to 1/3 lb:
4
--
15
-------
1
--
3
Invert the divisor (1/3) and multiply:
4 3
-- * ---- = 4:5 (this is the desired ratio)
15 1
