CPhill

Just put this straight into the onsite calculator.....it will give you the fractional and decimal result....

Just type in  ... log(b,a) .....   where "b" is the number you are taking the log of and "a" is the base you are using.....

Happy7 has indicated that this equation has no solution....let's see why......

11x+2/3(9x-12)=19x-2(x-4)   simplify

11x + 6x - 9 = 19x - 2x + 8

17x - 9  = 17x + 8

Note that, subtracting 9 from 17x can't be equal to adding 8 to it...!!!

Thus...it apppears the happy7 is correct!!!!

(33 + 1/3) * 3  =

(33)*3  + (1/3)*3 =

99 + 1  =

100

1) Distance / Time   = Rate (Speed)

172 km / 1 hr 20 min =

172 km / 1+1/3 hr =

172 km / 4/3 hr =

172 km x (3/4) / hr  = 129 km / hr

2) Rate x Time = Distance

248 km/hr x 1hr 15 min =

248 km/ hr x 1.25 hr = 310 km

f(x)=10(11-w)

All we can do is this  ..... just distribute the 10 across the two terms in parentheses  .....this gives...

f(x) = 110 - 10w

A 37.5% discount means that the package is worth 62.5% = .625 what it originally was

So we have... 850(.625)   = $531.25

See...I told you I was around in the pioneer days....!!!    LOL  !!!

1 / 9 ÷ 1 / 7

Remember......that when we divide fractions, we change to multiplication and "invert" the second fraction......so we have...

1 / 9  x 7 /1  =   7 /9  = .77777....