Answer:
3x=11
Step-by-step explanation:
a number: x
three times x: 3x
is equal to 11: 3x=11
Answer:
The probability is 0.508 = 50.8%.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean
and standard deviation
, the z-score 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 p-value, we get the probability that the value of the measure is greater than X.
Normally distributed with a mean weight of 0.8544 g and a standard deviation of 0.0525 g.
This means that 
If 1 candy is randomly selected, find the probability that it weighs more than 0.8535 g.
This is 1 subtracted by the pvalue of Z when X = 0.8535. So



has a pvalue of 0.492
1 - 0.492 = 0.508
The probability is 0.508 = 50.8%.
Answer:
$260
Step-by-step explanation:
Actual price + 8% of actual price=$280.80
Let x= actual price
8% of actual price=8/100 of x
=0.08x
x + 0.08x=$280.80
1.08x=$280.80
x=$280.80/1.08
x=$260
Price of the jacket before sales tax=$260
Check:
8% sales tax of $260
=8% of $260
=8/100×$260
=0.08×$260
=$20.8
Purchasing price= actual price+ sales tax
=$260+$20.8
=$280.80