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let x be no. of commer. of 30 sec and y be of 60
so x*30+y*60=11*60
and x+y=14
solve 2 equations

Thanks much I have a few more would you like more medals?

Don't care about the medals... but will help you... but we will work them together.

i will also help

yea

240

So what is the equation about pounds.

x+y=240

Good... now we need to deal with the percents.. There are three percents listed. 12%, 6%, and 9%

right

So we have 2 equations ... 2 variables.
x + y = 240
.12x + .06y = .09(240)

x + y = 240
.12x + .06y = 21.60

x + y = 240
12x + 6y = 2160
OK so far? I will wait for your answer

OOPS same things as multiplying by 100 in the last post

well what happen to 9%?

right?

What do you mean by right? to what?

I will write what we have right now with every step so it is all together.

ok

ok gotcha I am trying to follow along sorry

that was easy 120 plus 120 then that would have been more simply

another one ?

Sure

ok following

thanks very much.....rest time

ok