osasugwumbem
osasugwumbem osasugwumbem
  • 21-05-2017
  • Mathematics
contestada

k stands for a whole number.
k+7 is greater than 100
k-7 is less than 90
Find all the numbers that k could be

Respuesta :

jimthompson5910 jimthompson5910
  • 21-05-2017
If (k+7) is greater than 100, then,
k+7 > 100
k+7-7 > 100-7
k > 93

If (k-7) is less than 90, then,
k-7 < 90
k-7+7 < 90+7
k < 97

Combine the two solutions k > 93 and k < 97 to get this compound inequality: 
93 < k < 97

The number k is between 93 and 97. We are not including 93. We are not including 97.

If k is a whole number, then this is the set of possible values for k: {94, 95, 96}

Answer: 94, 95, or 96
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