A mountaineer climbed 1000 feet at a rate of x feet/hour
1000 = x ( t 1 ) eq1
5000 = X ( t 2) eq2 ( he climbed additional at different rate )
the rate was 10 feet / hour less than twice the first rate
X = 2x - 10 eq3
take eq1 and eq 2
( total time = t 1 + t 2 = T)
T = 1000/x + 5000/X
but X = 2x-10
T = 1000/x + 5000/( 2x -10)
T = 1000/x + 5000/( 2(x-5))
T = 1000/x + 2500 / (x-5)
Just simpfly the promblem
Answer:
Step-by-step explanation:
(5-4)/2 = 1/2
(2-3)/2 = -1/2
(1/2, -1/2)
<h3>Answer:</h3>
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Explanation:
means the first term is 1500, ie this is the first rent value.
To get the next term, we add on $140
So
and
and so on.
In general, the nth term 
is found by adding 140 to the term just before it 
So that's where 
comes from.
