11 and 3/8-1/8=11 and 2/8=11 and 1/4
3/4 times xbags=11 and 1/4
convert 11 and 1/4 to improper faction
11 and 1/4=11+1/4=44/4+1/4=45/4
3/4 times xbags=45/4
times both sides by 4/3 (to clear fraction since 3/4 times 4/3=12/12=1)
xbags=180/12
xbags=15
she could fill 15 bags
Answer:
Sugar will dissolve to half of it's amount in 2.41 minutes.
Step-by-step explanation:
The given question is incomplete; here is the complete question.
When the sugar is dissolved in water, the amount A that remains undissolved after t minutes satisfies the differential equation
If 25% of the sugar dissolves after 1 min, how long does it take for half of the sugar to dissolve.
The given differential equation is
In other form, dA = -kA.dt
We further integrate the equation,
lnA = -kt + c
Or
A = -----(1)
Here is a constant.
For t = 0,
Let
Therefore, equation (1) will become
A =
If sugar dissolves 25% in 1 minutes then undissolved sugar will be
100 - 25 = 75%
Now from the equation
By taking natural log on both the sides
k = 0.2877
Now we have to calculate the time to dissolve half of the sugar, that means half the sugar will be undissolved.
Form the equation,
ln(0.5) =
0.6931 = 0.2877t
t = 2.41 minutes
To solve this we need first find are number that we have to multiply 17 by to get are number. To do this we look at are denominator and because it is 1 over 10 meaning that 17=1 and x=10 all that we have to do is take 17*10=170.
Enjoy!=)
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Answer: 1 1/4
Explanation:
4/8 + 4/8 = 8/8 = 1
1 + 2/8 = 1 + 1/4 = 1 1/4
I hope this helped!
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- Zack Slocum
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