Answer:
I believe the one you selected is correct. A negative plus a negative makes a positive meaning you start at -2 and end with +2
Answer:
- 26 ounces of 55% solution
- 104 ounces of 80% solution
Step-by-step explanation:
Let x represent the quantity of 80% solution. Then 130-x is the amount of 55% solution. The total amount of salt in the mix is ...
0.80x +0.55(130 -x) = 0.75·130
0.25x = 0.20·130 . . . . . . . subtract 0.55(130)
x = 0.20/0.25(130) = 104
130-x = 26
She should use 26 ounces of 55% solution and 104 ounces of 80% solution.
Answer:
you should just use an online caculatur
Step-by-step explanation:
Answer:
this is a horizontal line which crosses the y-axis at -4
Step-by-step explanation:
