Answer:
In this problem, "y" represents the integer that must be found or figured for. When a number and a representation are written this way, i.e. "8y", you must mulitply them. If there is more information, you can figure for "y". If there is no other information, "y" is simplied and the end result is "8y".
And I not sure what - 1 is but it might be subtraction.
Answer:
2x=5 x=2.5
Step-by-step explanation:
2x+5=10
2x=10-5
2x=5
x=2.5
Answer:
150 mL
Step-by-step explanation:
Let x represent the quantity of 75% solution needed. The total amount of alcohol in the 60% mixture will be ...
75%·x + 10%·45 = 60%·(x+45) . . . . . there will be x+45 mL of solution in the end
0.15x = 22.5 . . . . . . . . . . . . . . . . . . . . simplify, subtract .60x+4.5
22.5/0.15 = x = 150 . . . . . . . . . . . . . . mL of 75% solution needed
You will need 150 mL of the 75% solution.
The answer will be option B.
Answer:
64.9 per shares
Step-by-step explanation:
120/1.85 = 64.8648648649 = 64.9