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2 years ago

15

Solve: −3(5+8x)−20≤−11

1 answer:

Tatiana [17]2 years ago

3 0

-3(5 + 8x) - 20 ≤ -11 |use distributive property: a(b + c) = ab + ac

-15 - 24x - 20 ≤ -11

-35 - 24x ≤ -11 |add 35 to both sides

-24x ≤ 24 |change signs

24x ≥ -24 |divide both sides by 24

x ≥ -1

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This means that $Q(6) = (1-0.03)Q(0) = 0.97Q(0)$ . We use this to find r.

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