Miss Thompson wanted to plan how to contact her students by phone in case the field trip they were going on the nextg day needed to be cancelled. She decided to call one student, who would then call 2 other students. Each of these students would then call 2 other students. This telephone chain would continue until all the students had been called. Miss Thompson has 31 students. How many students will need to make phone calls if Miss Thompson calls the first student?
How do you know? Explain using words.
56 comments:
21 students would have to call.
15 because you would have to round then you take 30 divided by 2 and you get 15
15 students would need to make phone calls because that is about have of 31.
15 because 30 divided by 2 is 15 and there is 1 left over but that 1 that is left over is what Miss Thompson called.
15 because because the rest would not have to call anyone because every one was already called
16 students would have to call because if you use a factor tree starting with 1 student then break it down in to the 2 students the stuudent called and ect. and finish with 31 students you count the number of student that called 2 others and end with 16 students that called.
15, because if miss tompson calls the first one there is 30 students left, and 30 divided be 2 = 15.
15 students woiuld have to call because u already called 1 so 31-1=30 then each student would have to two times which means 30/2= 15students
15 will have to call 2 people,she called the first 1.
15 students would have to call because she called the first student and that student is sopposed to call 2 others. It would keep on going until all of the students have been told about the feild trip.
15 because If she calls the first 1 there are 30 left to call and if every1 calls 2 people then ebery1 would know
15,because 30 divided bye 15=2 so there would be 1 student left.
if you round to 30 then u divide it by 2 then u get 15 students
15,because 30 divided by 15 is 2 so 1 student left.
11 kids would have to call.Because the kids have to call 2 people and those people would call 2 people and so on.
if you take 30 and divide it by 2 you get 15 so 15 students would have to make phone calls because miss thompson had already made the first 2
15 because if you divide 30 by 2 it is 15. there sould be 1 left over and that is the one mr. thompson cslled.
15 students would call, but the one that Miss thompson called is the 31st the others are called but students
15 would have to call because 15x2 is 30 and the one is the original one that miss. t called
*)wHiTnEy(*
15 where taken
how did i get it i take 30 divide by 2
15 because 30 divided by 2 is 15 and there will be 1 left over and that is the one that she called
the first sudnet has to make at lest 30 calls
15 Students would have to call someone because if you take 31 divided by two you get 15, or about. So 15 students will have to call someone.
15 students that is about half of 31
18 because you make a tree and I didnt cout the ones at the top of the tree because they didnt have to call anyone. so the answer is 18
forvgot the R in my nam
15 would call because if she called 31 student about half of 31 is 15
i would have to say 15 becuase if you take 30 divied bye 2 then you get 15.ps fell better.
15 because 30 divided by 2 = 15 and then you add the one the teacher called and that would make 16 students.
Miss Thompson would call 1 (student), who would then call 2 and 3. 2 would call 4 and 5, 3 would call 6 and 7. 4 would call 8 and 9, ect. 15 students would have call, because each student needed to call 2 other students.
15 because they all call two and she has already called 1
15, because if Ms. Thompson calls the first one there is 30 students left, and 30 divided by 2 = 15.
15 students will have to call other students
15 students would be called because 2 divide by 30 is 15
15 because its half of 30
21 STUDENTS WOULD HAVE TO CALL
15 students will have to call 2 people and 1 person will only have to call 1 person
15 calls will be made
16 because 15/2=15 then add the 1 the teacher called
15 will have to call. I just drew a picture
15 students, because you would take 30 divided by 2 and you get 15.
15 students would have to make phone calls because 15+15=30 and thhat is only one less then 31.
15 student becasue the rest dont have to call.
15 students would have to call because i made a tree type of thinger and i got 15
15 becouse 15 divided by 2 is 30 and Miss Thompson had called the left over student
the answer is 14
15 students because u called one so 31-1 is 30 she then 30 / 2 is 15.
30/2= 15 students
15 students needed to call. Because 15x2=30 plus the one Miss.Thompson called which would make it be 31 students.
Well bye now have a awesome weekwnd and Miss. Thompson hope you get better soon
15 students because 31 students - 1 = 30 30 divide by 2 = 15
15 because 15 is half of 30 and Miss Thompson is 31
15 students
15 students because you would have to round then you take30 and divid it by 2 and you get 15
15 students need to call because 15 t 15 = 30 students add one more and you get 31
15 because if each called two students it is like it is divided in half plus the one miss thompson called would equal 31
15 students will be needed to call all 31 students
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