Answer:
36x
Step-by-step explanation:
6x=6x=12x
12-6.4=18x
5.5--2.1=6x
12x+18x+6x=36x
Answer:
1
Step-by-step explanation:
x-9=-8
x=-8+9
x=1
The answer to this equation is 1/2
Answer:
25 divided by 5 = 5, so the unit rate is 5 circuit boards every minute.
Let there be x quarts of the 20% salt solution, and (25 - x) quarts of the 80% salt solution.
Then the total amount of salt in the 20% portion would be 0.2x, while that from the 80% portion would be (0.8)(25 - x). This would have to total up to (0.44)(25) in the final solution, so the equation is:
0.2x + 0.8(25 - x) = (0.44)(25)
-0.6x + 20 = 11
x = 15 quarts of the 20% salt solution
25 - x = 10 quarts of the 80% salt solution
