Answer: 2520 inches.
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Answer How many liters of a 20% acid solution should be mixed with 30 liters of 50% acid solution in order to obtain a 40% solution. ... x=15 liters 15*(.20 pure acid)=3 liters 30*(.50 pure acid)=15 liters That is 18 liters pure acid That is 45 liters solution *0.45 pure acid=18 liters.
As more pure acid is added, the concentration of acid approaches 0.
Hello from MrBillDoesMath!
Answer:
(1/x) * ( (1/ln7) - (1/ln9) )
Discussion:
Using the change of base formula
log_b(x) = ln(x) / ln(b) sp where _b means to log to base b
f(x) = ln(x)/ln(7) - ln(x)/ln(9)
so
f' = (1/x) *(1/ln7) - (1/x) *(1/ln9)
= (1/x) * ( (1/ln7) - (1/ln9) )
Thank you,
MrB
So 1.22 per large flower
200 large flowers
1.22 times 200=244 yards used
subtract
300-244=56
56=100 smal flowers
divide both sides by 100
0.56=1 small flower
the answer is 0.56 yards=1 flower
First take 18 and divide by 50 = .36, so your percent is 36%.
