Question

if the sum of a number and 9 is tripled, the result is 8 less than twice the number. what is the number?

Answer 1

(x + 9) ^3 < 8(2x)
x^3 + 27x^2 +243x + 729 < 16x
x^3 + 27x^2 + 227x + 729 < 0

Answer 2

oops

Answer 3

(x+9)^3 < 2x - 8

Answer 4

so, it would be negative 19 right?

Answer 5

x^3 + 27x^2 + 243x + 729 < 2x - 8
x^3 + 27x^2 + 241x + 737 < 0

Answer 6

OK WOW i obviously dont know pellet haha

3(x + 9) < 2x - 8

-19 < x

Answer 7

pellet haha x<-19

Answer 8

pretty sure i had the wrong answer too. because -19 doesn't check so that's not right either. hmm.

Answer 9

no
x < -35

Answer 10

try that

Answer 11

its the algebra

3x + 27 < 2x - 8
x < -35

Answer 12

no pellet no it totally is -19

Answer 13

it's actually -43

Answer 14

haha flutter its -35. im going to stop responding now. try any number greater than -35

Answer 15

-43. thanks for trying to help though =p

Answer 16

haha i just did the math three times and i got -35

Answer 17

hmm..well i will be able to see if it's right in a minute.