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Mathematics 7 Online
OpenStudy (anonymous):

Four times the sum of a number and 15 is at least 120. Let x represent the number. Find all possible values for x. A. x ³ 26 B. x ³ –15 C. x ³ 15 D. x ³ –26

OpenStudy (anonymous):

Four times = 4* the sum of a number and 15 = x + 15 at least 120 means that that number is greater than 120. Put it all together 4*(x+15) > 120

OpenStudy (anonymous):

so its C?

OpenStudy (anonymous):

Does that say \[x^315\] If it does, then the answer doesn't make any sense.

OpenStudy (anonymous):

ok now im lost

OpenStudy (anonymous):

I can't read what your answer selection says. I think it says x cubed (or x raised to the power of 3) but I don't think that's what you meant to write.

OpenStudy (anonymous):

Now that I looka t your answers, I think it's supposed to be: A) x>26 B) x>-15 C)x>15 D)x>-26 If those are your choices andyou solve for x, you'll find that C is the correct answer.

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