12+16+68= 96 pages
Bee read 96 pages
1.8903
because if you do the math its easy
Answer:
Step-by-step explanation:
Let X be the amount of money that Laurie has to spend.
Let Y be the amount of money that Laurie's sister has to spend.
Let C be the cost of a box of chocolates.
The following represents how much money Laurie and her sister have after buying the box of chocolates:
X + Y - C
This result is the amount of money that Laurie and her sister have left to buy on flowers.
Let F be the amount of money that Laurie and her sister spend on flowers.
We know that the above result must be greater than or equal to the amount that Laurie and her sister spend on flowers; otherwise they will be spending more than they have.
The following equation then represents how much Laurie and her sister have left to spend on flowers:
X + Y - C F
Plugging in the values for the above letters will give you your answer.
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Answer:
The percentage of error in this experiment is 0.66%
Step-by-step explanation:
The value measured by a student, let's call it , is equal to 0.1355 M. And the real value of molarity is,let's call it is equal to 0.1364.
The error in the measurement (E) is equal to the absolute difference between the real value and the measured value:
abs ( <em>xr - xm</em> ) = E
So in this experiment it will be equal to:
abs ( <em>0.1364 - 0.1355</em> ) = 0.0009
And the percentage of error (e) will be:
Thus,
e = 0.0009 * 100 / 0.1364 ⇒ e= 0.659 % ≈ 0.66 %
So, the percentage of error in this experiment is 0.66%