100 - 3n
83.7
The nth term is -4n+102. Method: To find the nth term (Tn) of the sequence, multiply n by the pattern of change in the sequence from left to right (-4). Then, substitute n for a term, for example, term 2. Follow the first step (-4n) which will give -8. Then you add or subtract to equal the number of that term (94). -8+x=94. x=102. Therefore, the formula for the nth term is -4n+102. To prove it, try with any term. Term 3 (the number is 90). 3 x -4 = -12 -12 + 102 = 90 Tada!
To find the first three terms of the sequence defined by the formula 100-3n, you simply substitute n = 1, 2, and 3 into the formula. For n = 1, the first term is 100-3(1) = 100-3 = 97. For n = 2, the second term is 100-3(2) = 100-6 = 94. For n = 3, the third term is 100-3(3) = 100-9 = 91. Therefore, the first three terms of the sequence are 97, 94, and 91.
24. It is the difference between 97 and 73, the highest and lowest numbers in the set.
89+84+90+94+98=455 455/5= 91 91 is the mean.
the nth term of the sequence 98, 94, 88, 80 can be expressed as 98 - (n - 1) * 2.
85,88,91,94,95,98
94 and you skip it by 8's
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83.7
90.
212.1111111 is the mean.
The nth term is -4n+102. Method: To find the nth term (Tn) of the sequence, multiply n by the pattern of change in the sequence from left to right (-4). Then, substitute n for a term, for example, term 2. Follow the first step (-4n) which will give -8. Then you add or subtract to equal the number of that term (94). -8+x=94. x=102. Therefore, the formula for the nth term is -4n+102. To prove it, try with any term. Term 3 (the number is 90). 3 x -4 = -12 -12 + 102 = 90 Tada!
To find the median of a set of numbers, you first need to arrange them in numerical order. Once you have them in order, the median is the middle number. If there is an odd number of values, the median is the middle number. If there is an even number of values, the median is the average of the two middle numbers. In this case, the numbers arranged in numerical order are: 78, 81, 82, 88, 88, 88, 89, 91, 91, 92, 93, 94, 95, 96, 98. Since there are 15 numbers, the median will be the 8th number, which is 89.
90, 91, 92, 93, 94
To find the first three terms of the sequence defined by the formula 100-3n, you simply substitute n = 1, 2, and 3 into the formula. For n = 1, the first term is 100-3(1) = 100-3 = 97. For n = 2, the second term is 100-3(2) = 100-6 = 94. For n = 3, the third term is 100-3(3) = 100-9 = 91. Therefore, the first three terms of the sequence are 97, 94, and 91.
88