Answer:
8.46 gallons needed to be replaced
Step-by-step explanation:
Let x be the alcohol amount that replaced
-Original has concentration of 15% multiply by the amount of 10 ,which is equal to (0.15×10).
-Removed has concentration of 15% multiply by the amount of x ,which is equal to (0.15 × X).
-Added has concentration of 80% multiply by the amount of X ,which is equal to (0.8× X).
-Solution has concentration of 70% multiply by the amount of 10 ,which is equal to (0.70×10).
So that, the equation will be:
Solution=Original + added - removed
7=1.5+0.8x-0.15x
7-1.5=0.65x
0.65x=55
x=55/0.65
x=8.46
8.46 gallons needed to be replaced.
Answer:
a
Step-by-step explanation:
yes
Answer: he had 5 pounds.
Step-by-step explanation:
ez
Let Universal set U = {1, 2, 3, 4, 5, 6, 7, 8}, A' = {2,5, 6, 7}, A N B = {1,3,4}
blsea [12.9K]
Answer:
Hi myself Shrushtee
Step-by-step explanation:
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