Question

Please help with math.
SS Below vvv

Answer 1

ah, proportions

assume that the ammount of waster per each of the materials is 100%, and the ammount recycled is x% -- so:

\[ \frac{\text{ammount of waste}}{100%} \times \frac{\text{ammount recycled}}{x} \]

cross multiply, and you will have your answer

do it for each of them individually

Answer 2

20.16? I don't get this.

Answer 3

what?

Answer 4

I don't get this

Answer 5

why? its pretty self explanatory and simple!

Answer 6

; - ;

Answer 7

ok, let me walk you through the first one

so we said that proportions will be set up this way \( \frac{\text{ammount of waste}}{100%} \times \frac{\text{ammount recycled}}{x}\)

lets do it for paper, the 1st material

\( \frac{77.8}{100\%} \times \frac{26.5}{x\%}\)

by cross multiplying we get:
\[ 77.8 \times x\%=100\% \times 26.5 \Rightarrow x\%=\frac{100\% \times 26.5}{77.8}\]

Answer 8

oh :p

Answer 9

I did something else but alright.

Answer 10

So what's next?

Answer 11

Aluminium is next -- dont forget to finish the one i did above^^^^

Answer 12

what is x..

Answer 13

pardon? -- just do the math haha

Answer 14

Idk how to do that ; - ; never learned

Answer 15

oh wow -- ok so we left it here: \( x\%=\frac{100\ \times 26.5}{77.8} \)

whats \( 100\ \times 26.5 \)?

Answer 16

2650

Answer 17

sweetas!

and what is \( x\%=\frac{2650}{77.8}
\) ?

Answer 18

34.06?

Answer 19

correct! do the same for the rest materials.