4th grade
posted by dk .
sylvester bowls once a week. this week he bowled four games. his scores were, 105 103 107 109
what is his average (mean) for the week? explain how you found your answer.
what is the median score for the week? explain how you found your answer.
what is the mode for his socres for the week? explain how you found your answer.
he rented shoes for $2.50 and paid $1.50 for each game. if he paid with a $10 bill, how much change did he receive?

I'll be glad to HELP you with these problems after you tell me what you know and what you don't know about their answers.
In other words, you make an effort, and we can then help you. 
i add first 107+105=212/2=106/2=53

i don't this is right or wrong

i don't no this is right or wrong

You need to add all four numbers first. Then divide the sum by 4 to find the mean.

424/4=106

Right! :)

this is all what about another one

This site shows you how to find the median and the mode.
http://www.purplemath.com/modules/meanmode.htm 
the median is 105 and 107
and i don't about mode 
The median is half way between 105 and 107  so the median is 106.
This set of numbers doesn't have a mode. All of the numbers are different.
How do you think you can solve the last problem? 
10.001.50=$8.50 he receive back
and my son did 2:50+1:50=4:00 then he subtract 10:004:00 =$6:00 he receive back 
He played 4 games. So we multiply 1.50 times 4 = $6.00.
He paid $2.50 to rent shoes.
$2.50 + $6.00 = $8.50
$10.00  8.50 = ? change 
10.008.50=$1.50

Right. :)

thank you very much for helping me and my son

You're very welcome.
Respond to this Question
Similar Questions

Easy Math
This seems like an easy question yet I am not able to comprhend. Question: Inher latest game, Mary bowled 199 and raised her average to 179 from 178. To raise her average to 180 with the next game, what must she bowl? 
economics
Each week, Bill, Mary and Jane select the quantity of two goods, x1 and x2, that they will consume in order to maximize their respective utilities. They each spent their entire weekly income on these two goods. Suppose you are given … 
Math
Over a fourweek period, Gail earned the following commissions? 
statistics
if this are class scores and in one week i have bimodal distribution,another week a positive skew,3rd week a normal distribution and 4th week negative skew.what does this different scores tells you about thios tests , what is happening … 
statistics
The average teenager spends 7.5 hours per week playing computer and video games. In a random sample of 110 teenagers, what is the probability that their mean time for playing games is more than 8 hours per week? 
math
Joes electric made 19 customer calls last week and 24 calls this week, How many calls must be made next week in order to maintain an average of at least 21 calls per week for the three week period? 
math 6
Jillianknits hats for her family and friends. In the first week, she knits 4 hats. The next week, she has some help, and together, they knit four times as many hats. The following week, she has even more help, and they knit four times … 
Math averages
Caitlyn sold 7cars per week for the first three weeks, but in week four she sold 11 cars. What is her average number of sales per week in her first four week on the job? 
Science
How long does it take the moon to go from fullmoon phase to new moon phase? 
Math
Jill shops once a week at a store. If the mean (average) amount that she spends per week is $27.20, how much did she spend in the past 8 weeks?