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Mathematics 14 Online
OpenStudy (anonymous):

hey guys, how would i solve this?

OpenStudy (anonymous):

\[1.33=(.93)^{x}\]

OpenStudy (stamp):

\[133/100=(93/100)^x\]

OpenStudy (anonymous):

solve for x man...

OpenStudy (stamp):

Are you learning this in an Algebra course?

OpenStudy (anonymous):

well, no, i just need help in solving for x

OpenStudy (stamp):

hint: logarithsm

OpenStudy (anonymous):

dude, come, just tell me why you multiplied by 100

OpenStudy (stamp):

Those are fractions. I turned 1.33 from a decimal to a fraction 133/100. Same for the 0.93.

OpenStudy (stamp):

0.93 = 93/100

OpenStudy (stamp):

Step 1\[1.33=0.93^x\]\[ln1.33=ln0.93^x\]

OpenStudy (anonymous):

13300=9300^x?

OpenStudy (anonymous):

natural log?

OpenStudy (stamp):

yeahs.

OpenStudy (anonymous):

once they are both in fractions, cant i just cross multiply?

OpenStudy (stamp):

no

OpenStudy (anonymous):

why not?

OpenStudy (stamp):

that is forbidden

OpenStudy (anonymous):

why

OpenStudy (anonymous):

it's simple math.

OpenStudy (stamp):

The x is an exponent

OpenStudy (stamp):

the game has changed

OpenStudy (anonymous):

yes, but dont you just take the exponent with it?

OpenStudy (stamp):

show me

OpenStudy (stamp):

i showed you step 1, there are only two more lines to the solution

OpenStudy (anonymous):

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