<span>1 and 2/3 time 1 and 1/3 is 2.22222222222 which rounds to 2.</span>
I can't see the options, but you would need to multiply (4x - 2y = 7) by 3, and (3x - 3y = 15) by 4 so that you get 12x in both equations. Then when you subtract, you eliminate 12x. I hope this helps!
The answer is y= -4/7x+2
explanation
1. subtract 4x from both sides
2. divide every term by 7
Mg required per pound = 249/153 = 1.63mg
Therefore medicine required= 102 *1.63= 166.26g
First, we need to isolate the variable x.
To isolate x, we simply need to multiply both sides by 9, which would result in x = 9
