kierstenh14
Answered

Define a variable, write an inequality, and solve each problem. Check your solution.

  1. Half of a number is at least 14
  2. The opposite of 1/3 a number is greater than 9
  3. 1/5 of a number is at most 30

Verified Answer :

Brittxny

A variable= an unknown number

1. (1/2)x ≥ 14
x ≥ 28
Check:
1/2(28) ≥ 14
14 ≥ 14

2. -(1/3)x > 9
x < -27
Check:
-(1/3)(-30) > 9
10 > 9

3. (1/5)x ≤ 30
x ≤ 150
Check:
(1/5)(140) ≤ 30
28 ≤ 30

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