Five pounds of candy that is 20% chocolate is combined with a candy that is 40% chocolate. How many pounds of the candy that is
1 answer:
Answer:
5/3 pounds
Step-by-step explanation:
Five pounds of candy that is 20% chocolate is combined with a candy that is 40% chocolate
Let x be the pounds of candy that is added with 40% of chocolate
5 pounds that is 20%. 20% = 0.2
x pounds that is 40%. 40% = 0.4
mixture is x+5 pounds that is 25%. 25%= 0.25
Subtract .25x from both sides
Subtract 1 from both sides
divide both sides byu 0.15
x=5/3 pounds
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Answer:
The expected combined weight of the child's lollipop and two chocolate bars is 5.5 oz.
Step-by-step explanation:
Normal probability distribution
When the distribution is normal, we use the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Addition of normal variables:
The mean is the sum of the means.
Find the expected combined weight of the child's lollipop and two chocolate bars.
Child lollipop: Mean 1.5 oz
Chocolate bars: Mean 2 oz
One lollipop and 2 bars combined
The mean will be 1.5 + 2*2 = 5.5 oz
The expected combined weight of the child's lollipop and two chocolate bars is 5.5 oz.
Answer:
Step-by-step explanation:
Given:
To find: c
Solution:
At :
(i)
At :
(ii)
At :
(iii)
On subtracting (i) and (ii),
(iv)
On subtracting (i) and (iii),
On subtracting (iv) and (v),
Put a=3 in (iv)
Put in (iii)