A group of 8 friends went to lunch and spent a total of $76, which included the food bill and a tip of $16. they decided to spli
t the bill and tip evenly among themselves. which equations and solutions describe the situation? CHECK ALL THAT APPLY.
a. the equation 1/8(x+16)=76/8 represents the situation, where x is the food bill.
b. the equation 1/8(x+16)=76 represents the situation, where x is the food bill.
c. the solution x=60 represents the total food bill.
d. the solution x=60 represents each friend's share of the food bill and tip.
e. the equation 8(x+16)=76 represents the situation, where x is the food bill.
a. the equation 1/8(x+16)=76/8 represents the situation, where x is the food bill.
b. the equation 1/8(x+16)=76 represents the situation, where x is the food bill.
c. the solution x=60 represents the total food bill.
d. the solution x=60 represents each friend's share of the food bill and tip.
e. the equation 8(x+16)=76 represents the situation, where x is the food bill.
1 answer:
You might be interested in
Answer:
C. 34.15 oz
Step-by-step explanation:
Problems of normally distributed samples are solved using 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.
In this problem, we have that:
How heavy does a box have to be for it to be labeled overweight?
Top 5%, so X when Z has a pvalue of 1-0.05 = 0.95.
So X when Z = 1.645.
So the correct answer is:
C. 34.15 oz