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6 December, 09:54

Ten times the sum of a number and

15

is at least

26

.

Use the variable

b

for the unknown number.

+4
Answers (1)
  1. 6 December, 10:11
    0
    At least means greater than or equal to.

    10 * (15+b) ≥ 26

    150+10b ≥ 26

    10b ≥ - 124

    b ≥ - 12.4
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