Simultaneous Equations
2x+4y=22
2x+2y=15

x = 4

y =

Step-by-step explanation:

Ummmm

I'm not sure if this is corrrect but this is what I got

So first you solve 2x+4y=22 to find x

and you get x =

Then you have to subtitute for in

which you then get y=

After you have to subttitute y=  for y in x =

which you get as x=4

Finally you get the answer as:

x = 4

y =

50x5=$250

step-by-step explanation:

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)