Question

Solve.
link to problem:
http://static.k12.com/bank_packages/files/media/mathml_d5a6d6d417f521e4e2a944dfcfc542a4d3ffc77b_1.gif


A.
t ≤ –75

B.
t ≥ –75

C.
t ≤ –3

D.
t ≥ –3

Answer 1

Multiply -5 to both sides..what's \(15 \times -5\)?

Answer 2

-75 right?

Answer 3

would it be B then, @iGreen ?

Answer 4

No..we have to switch the sign when dividing or multiplying by a negative number..

Answer 5

that's right I forgot! so it would be A then right?

Answer 6

\(-\dfrac{t}{5} \ge 15\)

\(t \le -7~\Large\color{lime} \checkmark\)

Answer 7

*-75

Answer 8

A is correct!

Answer 9

Thanks for your help! here is a medal! :)