10x + 15 = 20 so 10x = 20 <span>- 15 =5, and 10x=5 means x=5/10=1/2
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9514 1404 393
Answer:
1/5^6
Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)^c = a^(bc)
a^-b = 1/a^b
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Answer:
In mathematics, a real number is a value of a continuous quantity that can represent a distance along a line
8,16,24,32,40,48,56,65,73,81,88.....
9,18,27,36,45,54,63,72,81,90....
since 81 is the smallest number in both lists, it is the LCM
This is an Arithmetic Progression with 1st term 11 and common difference d=6
Number of Rows Number of seats Common difference " d"
----------------------- ----------------------- -------------------------------------
1st a₁ = 11
2nd a₁+d =17 d =2nd - 1st = 6
3rd a₁ +2d = 23 d =3rd - 2nd = 6
4th a₁ +3d = 29 d= 4th - 3rd = 6
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nth ROW a(n) = a₁ + (n-1)d
18th ROW a₁₈ = 11 + (18-1).6 = 11+(17)(6) = 113
General equation to predict the number of seat an the nth row:
Number of seats in nth row = a₁ + (n-1).d
