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Four times a number increased by seven must be at least 31 but at most 55. Which interva
represents the values of the number in this situation?

Respuesta :

Answer:

6 [tex]\leq[/tex] x [tex]\leq[/tex] 8

Step-by-step explanation:

We'll represent the number with the expression 4x + 7

Then, we'll set up the inequality:

31 [tex]\leq[/tex] 4x + 7 [tex]\leq[/tex] 55

24 [tex]\leq[/tex] 4x [tex]\leq[/tex] 48

6 [tex]\leq[/tex] x [tex]\leq[/tex] 8

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