after being set up, a company manufactured 6000 scooters in the third year and 7000 scooters in the seventh year. assuming that the production increases uniformly by a fixed number every year, what is the production in the tenth year? 7850
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7850 is the answer ........
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Step-by-step explanation:
The production in the tenth year is 7750
Step-by-step explanation:
A company manufactured 6000 scooters in the third year and 7000 scooters in the seventh year.
Since we are given that the production increases uniformly by a fixed number every year
So, It forms an AP
Formula of nth term = a n = a + ( n - 1)d ---1
so , a3 =6000
a3 = a+ (a-1)d = 6000
a3 = a +2d = 6000 -----A
a7 = 7000
a7 = a +( 7-1 )d = 7000
a7 = a + 6d = 7000 ----- B
Subtract A from B
9 + 6d - a - 2d = 7000 - 6000
4d = 1000
d = 4000 / 4
d = 250
Substitute the value of d in A
a + 2 ( 250) = 6000
a + 500 = 6000
a = 5500
Now to find the production in the tenth year
Substitute n 10 in 1
a 10 + 5500 + (10-1) (250)
a10 = 7750
Hence the production in the tenth year is 77
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