Question

Four times a number increased by seven must be at least 31 but at most 55. Which interva

Answer 1

Answer:

6 $\leq$ x $\leq$ 8

Step-by-step explanation:

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

Then, we'll set up the inequality:

31 $\leq$ 4x + 7 $\leq$ 55

24 $\leq$ 4x $\leq$ 48

6 $\leq$ x $\leq$ 8