Question

Match the equation with the correct solution.
log 7 24 - log 7 (x + 5) = log 7 8
log 10 x + log 10 (x +21) = 2
log 4 x + log 4 9 = log 4 27
log 2 3x + log 2 5 = log 2 30
2log 10 6 - 1/3 log 10 27 = log 10 X
Choose... 12 5 -2 4 3 2
please help

Answer 1

helppppppppp

Answer 2

It's simple :)

Answer 3

can u help

Answer 4

all you have to do is do "Log of the tall divided by the Log of the small"
so the LOG of the bigger number divided by the log of the smaller number is what it equals

Answer 5

when logs are subtracted, they're divided
added, multiplied

Answer 6

can u show me how to do one

Answer 7

ok :)

Answer 8

choose one

Answer 9

the last one

Answer 10

ok, 2log 10 6 - 1/3 log 10 27 = log 10 X

Answer 11

do you have msn or skype i can voice chat and speak easier

Answer 12

no

Answer 13

oh ok
cause my keyboard is broken its a lot harder to type.

Answer 14

oh ok

Answer 15

wow your profile pic is amazing you're so hot

Answer 16

thanks

Answer 17

:) <3

Answer 18

one sec

Answer 19

but im not smart in math :(

Answer 20

ok back

Answer 21

I got a 98 in grade 11 math :)

Answer 22

what grade you in?

Answer 23

well im taking math on line so i can skip 11 n go to 12 but this math is to hard

Answer 24

It's simple once you get the hang of it.

Answer 25

I cant really tyep properly with this keybord its hard its kinda broken

Answer 26

i could help you lots by voice/cam chat

Answer 27

i dont have one

Answer 28

oh. msn?

Answer 29

no

Answer 30

nothing at all you have?

Answer 31

dam i do tutoring in math for 20/hour i could give you lots of free tutoring :)

Answer 32

do u have facebook

Answer 33

yeah i do

Answer 34

but can u please help me first on this math

Answer 35

ok sure

Answer 36

ill try with this key board

Answer 37

2log 10 6 - 1/3 log 10 27 = log 10 X

Answer 38

ok

Answer 39

\[2\log 10 6 - 1/3 \log 10 27 = \log 10 X \]

Answer 40

2log 10 6 - 1/3 log 10 27 = log 10 X

Answer 41

log10 6 is .77
times 2 is 1.5

Answer 42

so 1.5 - 1/3 log 10 27 = log 10 X
and log 10 27 is 1.43 times 1/3 is .47
so 1.5 - .47 = log10 x

Answer 43

1.03 = log10 x

Answer 44

and do 10^ 1.03 = x

Answer 45

so whats the answer

Answer 46

and finally we get 10.7 = x

Answer 47

:) there you go <3

Answer 48

but thats not an answer

Answer 49

It's rounding . the answer above is 12

Answer 50

I rounded it differently so with their method its 12. but its all almost the same basically

Answer 51

there's a easier way than to actually calculate them, no calculator needed.

27=3^3, so 1/3log10 27 =3/3log3=log3
2log6 - log3=logx
2(log(2*3) -log3 =logx
2(log2 +log3) -log3 =logx
2log2 +2log3 -log3 =logx
2log2+log3 =logx
log4 +log3 = logx
log12 =logx
x=12

Answer 52

omg i didnt get it ??? :(

Answer 53

oh

Answer 54

exactly what i did. see?

Answer 55

you just have to simplify. You can put log6 in your calculator. see what you get. and more

Answer 56

loga+logb =logab

Answer 57

yeah i said addition of logs is multiplying

Answer 58

well if you put it in a calculator, the answer is not an exact value, and that's not the point of the exercise.

Answer 59

brendas i can explain easier on facebook if you want

Answer 60

When you reach grade 12, they'll tell you to put it in a calculator.

Answer 61

You can multiply the logs when you add them, divide when you subtract

Answer 62

ok please whats ur email or name so i can look u up

Answer 63

brendas you can give me your full name ill add you

Answer 64

fine, i'm in grade 10, but i'm having maths in stanford, put it in the calculator if you want to.

Answer 65

brenda sanchez

Answer 66

oh there are a lot of brenda sanchez on facebook lol which one are you

Answer 67

tiffany can u help me do another one

Answer 68

give me ur email on facebook

Answer 69

markfahmy2009@live.com

Answer 70

whats yours

Answer 71

i found u

Answer 72

oh ok i added you