On Tuesday, Donovan earned $9 for 2 hours of babysitting. On Saturday, he babysat for the same family and earned $31.50. How many hours did he babysit on Saturday?
Answers
then we have to divide
it means Donovan babysit children of this family for 7 hours
Answer:
Donovan babysat for 7 hours.
Step-by-step explanation
Numerator = Money Earned Denominator= Hours Worked
=
31.50 x 2= 63 63/9 = 7
Related Questions
Ben rents a car for one day. The charge is $20 plus the $.12 per mile. He wants to spend exactly $80. how many miles can he drive?
A car salesperson earns 5.8% commission on every car sold. How much commission will the salesperson earn on the sale of a $28,400 car? Remember this is a money answer so 2 decimal places.
Carpet costs $15 per square yard. How much will it cost to carpet a room that is 180 square feet?
If the diagonal of a square is 14m long what is the perimeter?
. The mean would increase.
The median would decrease.
The median would increase.
Answers
The median would decrease. The correct option is C.
What is the median?
The average is the value obtained by dividing the sum of the data values by the number of data points, and the median is the midpoint of the given data points. However, for evenly spaced numbers like 2, 4, 6, 8, and 10, the median and average, or 6, are the same.
There are 16 observations in total in this question, and their average is 80. An anomaly with the value 91 exists. This demonstrates that the outlier is greater than the mean. The mean formula is:
Mean = Sum of observations/Number of Observations.
The sum of observations can be calculated by substituting the values in the above formula.
80 = Sum/16.
Sum = 80*16 = 1280.
Subtracting 91 from the total sum will give the sum of the rest of the 15 non-outlier values. Therefore 1280 - 91 = 1189.
Calculating the mean of the 15 values:
Mean = 1189/15 = 79.267 (correct to 3 decimal places).
It is evident that eliminating the outlier lowers the mean. As a result, C is the right response. Since actual values are needed to calculate the median but are missing, the information about the median cannot be determined. C is therefore the right answer.
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Answer:
Option C (The mean would decrease).
Step-by-step explanation:
In this question, there are 16 observations and their mean is 80. There is an outlier which has the value 91. This means that the outlier is on the greater side of the mean. The formula for mean is:
Mean = Sum of observations/Number of Observations.
Sum of observations can be calculated by substituting the values in the above formula.
80 = Sum/16.
Sum = 80*16 = 1280.
Subtracting 91 from the total sum will give the sum of rest of the 15 non-outlier values. Therefore 1280 - 91 = 1189.
Calculating the mean of the 15 values:
Mean = 1189/15 = 79.267 (correct to 3 decimal places).
It can be seen that removing the outlier decreases the mean. Therefore C is the correct answer. The information regarding the median cannot be determined since actual values are not present, which are required to calculate the median. Therefore, C is the correct choice!!!
PLZ HELP
Answers
Answers
The prices of RacerZ and the Swiftee bicycles are $142 and $154.78.
What is multiplication?
In Maths, the basic explanation of multiplication is adding a number, with respect to another number, repeatedly.
Given that, The Speed monster's price is $64.80. The RacerZ is $20 less than 2.5 times the price of the Speed monster. The Swiftee is 1.09 times the price of the RacerZ.
According to question,
Price of RacerZ = 2.5*64.80-20 = $142
Price of Swiftee = 142*1.09 = $154.78
Hence, The prices of RacerZ and the Swiftee bicycles are $142 and $154.78.
For more references on multiplication, click;
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Answers
Answer:
Any equation of a line having a slope of 1/2.
Step-by-step explanation:
It appears that the question gives answer choices and this problem could have many solutions, but parallel lines have equal slopes. The slope of this line is 1/2 since it is in y=mx+b form where m is the slope. So a few examples of equations of lines parallel to the given equation would be y = 1/2x - 5 or y = 1/2x + 10 etc.
If a total of 35 footballs and basketballs were sold, 10 of them were footballs.
There were 5 footballs sold for every 2 basketballs.
The ratio of basketballs to footballs is 5:2.
Answers
y=number of basketballs.
then:
x=2.5y
The ratio of footballs to basketballs would be: x/y=2.5=5/2
The ratio of basketballs to footballs would be: y/x=1/2.5=2/5
Then:
if x=5;
x=2.5y
5=2.5y
y=5/2.5=2
Therefore:
The only one true statement would be:
Answer: There were 5 footballs sold for every 2 basketballs.
Answers
Answer: 7
Step-by-step explanation:
i did the assignment.