You will have TWO choices for this Blog Assignment. Be sure to answer each part of the problem that you choose to do.
Choice #1: Julia’s phone calling plan is based on a set price $20.00 a month plus $0.04 a minute for calls.
1. If Julia makes m minutes of calls in a month, what would the expression be that would represent Julia’s cost, in dollars for that month? (Be sure to use “Let Statements” to set this up!)
2. Use your expression to solve each of the following (be sure to explain IN WORDS how you solved each of these):
a. What would Julia’s cost be if she spent 175 minutes on the phone in one month?
b. If Julia’s phone bill in one month was $29.12, how many minutes did she spend on the phone?
Choice #2: Every morning, Tommy and his dog, Rex, run to the local park, around the park, and back home. It is 525 meters to the park and x meters around the park.
1. Write two expressions for the total distance, in meters that Tommy and his dog run in a week. One of your expressions should involve parentheses. (Be sure to use “Let Statements” to set this up!)
2. Use either of your expressions to solve each of the following (be sure to explain IN WORDS how you solved each of these):
a. What would the total distance be that Tommy and Rex ran, in meters, if the distance around the park was 2200 meters?
b. If you know that Tommy and Rex ran 17,850 meters in one week, what would be the distance around the park?
Reminder:
Assignment - In your comment remember to include the following:
* your name (first name and last initial only)
* your class
* the answer to the problem – there are THREE parts – be sure to include every part and number the expressions
* an explanation that includes the strategy you used to solve.
* is there another way to solve the problem?
* any additional thoughts you have about the problem(s)
* refer to the Rubric as you answer the blog to ensure that you get the best possible score
*** Please be sure to comment on Blog Assignment #4 so that your assignment is not lost on other posts! ***
Remember when you "publish the comment" it will not appear on the Blog until it is past the due date AND Mrs. DaSilva has a chance to read and approve it.
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Samantha P
ReplyDeleteClass:4
Answers:
1)
Let m= amount of time spent on calls Julia made in a month
Let m* $0.04= amount of money spent in calls on Julia’s phone in that month in dollars
Let m*$0.04+$20.00= the total amount spent on her phone in that month in dollars
So your expression would be m*$0.04+$20.00
2)
A~ To solve this problem I took out the variable (m) and made it 175 because that is how much time she spent on the phone making calls. Now I used the order of operations to figure the expression out. (Please Excuse My Dear Aunt Sally) Since there are no parentheses or exponents I started with multiply of divide. 175*$0.04=$6.60, then you add the $20.00 and you get $26.60.Therefore Julia spent $26.60 on her phone that month.
B~ Now you put the M back in and add the total they gave us, m*$0.04+$20.00=$29.12. Now you use the traditional method because you have an unknown value in there. You get that m= $2.28 when I checked my work I came out to $29.12. Therefore Julia spent $2.28 on calls that month.
THOUGHTS AND OR CONNECTIONS: I thought that this problem was pretty easy. When deciding on which problem to should do I choose this one because I new how to do everything right after I read it, I new how to do the let statements and the traditional method to find the unknown value. There is another way to solve 2~B, instead of using the traditional method like I used you could have used a flow chart then backtracked. I think that the traditional method is easier but to some people it may not be so they could have used the flowchart instead to make it easier for them.
chris pimentel 2/4/10 mrs.dasilva
ReplyDelete1.let m =how many minutes julia uses a month for her cell phone plan.
let m+$20.00=how much julia spends a month on her phone bill.
let m + $20.00=total amout spent on julias phone bill.
2.
a.175 m+$20.00 in one month=175m*.04=$7.00+$20.00=$27.00
b.$29.12-$20.00=$9.12/.04=228 minutes
Brooke odonnell class 2 mrs.dasilva
ReplyDeleteLet m = how many minutes she has a month
Let m+20.00=how much money a month
Let m + 20.00 +0.04 how much money a call a min
Part a of #2 she spent 7 hours on the phone I got this by using a calculator and times it by 4
Part b of #2 she spent seven minutes and 28 seconds on the phone I used my calculator and divided 29.12 by 4 and got 7.28
Kirby Forsberg
ReplyDeleteMath-4
Choice #1
Julia’s phone calling plan is based on a set price $20.00 a month plus $0.04 a minute for calls.
1:
If Julia makes m minutes of calls in a month, what would the expression be that would represent Julia’s cost, in dollars for that month?
Let m= Minutes of calls in a month.
Let $0.04m= Total number of minutes used.
Let $20.00+ $0.04m= Total cost for Julia’s phone
$20.00+ $0.04m
v
2: Use your expression to solve each of the following
a: Let m= Minutes of calls in a month.
Let $0.04m= Total number of minutes used.
Let $20.00+ $0.04m= Total cost for Julia’s phone
m= 175
20.00+ (0.04x175) = 20.00+7= $27.00
b:
If Julia’s phone bill in one month was $29.12, how many minutes did she spend on the phone?
$20.00+$0.04x? = $29.12
-20.00 -20.00
0.04(?) = 9.12
-0.04 -0.04
? = 9.08
9.08 minutes
Mae-Lin L. Choice:1 Math:2
ReplyDelete1)let m= # of minutes Julia spend in a month
let m+20.00= total cost of phone in one month
2a) 175*0.04=7.00
7.00+20.00= 27.00
b)29.12-20.00= 9.12
9.12/0.04= 228 minutes on the phone for one month
Explanation: For the first part I had to write 2 let statements and one was for the minutes and the other total for the whole month. For the second part I multiplied the number of minutes to how much they cost then I had to add 20.00 because that was the pay for the phone by itself. For the last part I subtracted 20.00 from 29.12 because 20.00 is how much for the phone and the rest the cost for the minutes, then I divided 9.12 from 0.04 because that's how much one minute costs.
I thought this problem was something I can remember forever because I learned it before do to me it's like review. I enjoyed doing this problem because I like to do let statements and I thought this was a good problem to do with let statements.
Colby Ferreira
ReplyDeleteClass: 4
1. Let $20.00+$0.04m in dollars
I solved the problem by taking $20 which is how much Julia spends in a month as a fixed amount then added $0.04*m which is how much money she needs to pay for calls.
2.
a. Julia’s monthly payment will be $27.
Let $20.00= the amount of money she pays in one month without calls in dollars
Let $0.04*175= the amount of money spent on calls in dollars
Let $20.00+$0.04*175= the total amount spent in dollars
I found the answer by solving the math problem in the last let statement ($20.00+$0.04*175).
b. the amount of minutes is 228
I found the answer by adding 28 more to 175 which I knew was 27 It came out to 28.12 so I doubled it and, got 29.12.
Thomas O.
ReplyDeleteClass 1
Problem 1
1. Let m= Money spent on talking in one month in dollars
Let m+20= Total money spenton phone in one month
2. a. 175x0.04= 7$+20$=27$ (explain yourself)
b. $9.12 /o.o4=228 she will spend 228 minutes on the phone
There is not any simpler way of solver (that I now of)this does remind me of problems in the past.
kyle d math 2
ReplyDeletefor the first one my let statement is let m=total minutes spent on the phone. let .4m+20=total amount in dollars for the phone bill. for part a i got 90 dallors because 175 times .4=70 then add 20 and you get 90. for part b i got 22.8 minutes becaues when you have 29.12 and minus it by 20 you get 9.12. the reason is because the set price was 20. then you divde the rest by .4 and get 22.8 as your answer. I would be willing to do this pro blem with bigger numbers since Mrs dasilva goes over it a lot.
Choice#1
ReplyDeleteRachael.P
Math.4 class
1.)
Letm=The number of calls per month
Letm+$0.04=The number of phone calls and the cost per minute
Letm*$0.04+$20.00=The total cost for a month in dollars
2.)
In order to solve this problem for question one i wrote the expressions and sense there was just m minutes i multiplyed $0.04. Then sense you pay twenty dollars per-month you would just add that in.For problem two a i really didn't get it because 175 * 4 cents per minute is equal to 43 and 7.00 which would probably be $20.07. The problem two b was so easy cause all you had to do was divide 4 by 29.12 and the answer is 728 minutes.
What i did like about this problem was it was easy to write the expressions,''Let statements".
However i didn't like two a because when i solved it or tried to solve it i keeped on getting the wrong,a different answer.
2.)
(a.)175*$0.04+20.00=$20.07dollars
175*4=700/0.07+20.00=20.07.
(b.)4/29.12=728*4=29.12
So Julia spent 728 minutes this month.
kellsie m math3
ReplyDeletechoice 1
let m=amount of calls in a month
let 0.04m=amount of money julia owes after a month
let m+0.04m=amount altogether
let
2.a.0.04*175=7 I no because i multiplied it out and got 7 i thought this problem was easy because i already know how do do it and i did it before.
2.b. 29.12/0.04=728 minutes because 0.04*728 you get 29.12. i thought this problem was easy because i used let statments.
Caroline B
ReplyDeleteClass 1
Problem 1
answer to part one is
Let m+20.00+0.04m+20.04 m = Total cost of bill and minutes. How I figured this out is first I did
let m = the total amount of minutes used in 1 month
let 20.00+0.04m= the amount the bill and minutes per call
let 20.04m= the cost of the bill and minutes per call.
2a.
the cost of the bill per month if she used 175 minutes on the phone would be $21.75. Becuase you add the 175 to the $20.00.
2b.
The answer is 912 minutes becuase it realates to 2a all you do is add 912 to 20.00.
I have no connections with this problem.
Thoughts:
I liked this problem becuase we have been practicing LET STATEMENTS alot in class. It helps to practice it.
Rachel C
ReplyDeleteMath 4
Chocie 1
Part A= Julia's cost if she spent 175 minutes on the phone would be $62.00
Part B= Julia spent one minutes and 52 seconds on the phone that month.
Explaination
Part A:The strategy I uesd was the traditional method and Let statements. For part A I first made four Let statements the first one
Let M= minutes of calls in one month
Let M(0.04)= How much money needed for minutes in dollars
Let M(0.04)+20= How much money needed for minutes in dollars
Let M+M(0.04)+M(0.04)+20= total amount of money for minutes in dollars
Then after I wrote my Let statements I wrote my equation
M+M(0.04)+M(0.04)+20
Then there where three M's so I combineded them as I did with the two *0.04 So the equation turned into this
3M*0.08+20
Then I subsituted in for the variable
3*175*0.08+20 (after that I solved the equation)
^
525*0.08+20
^
42+20
^
62 So therefore the cost if Julia spent 175 minutes on the phone the cost would be $62.00.
Part B:
I used the same strategy I used for Part A. I used Let statements and the taditional method. The first let statements was the following
Let M= minutes spent on the phine
Let M(0.04)= Cost of minutes to make calls in dollars
Let M(0.04)+20= Cost of minutes for a month in dollars
Let M+M(0.04)+M(0.04)+20= Totla amount spent on minutes in a month
M+M(0.04)+M(0.04)+20 Then I did the same thing a shortened up the equation to
3M*0.08+20= 29.12
-20 -20
3M*0.08 = 9.12
/0.08 /0.08
3M = 1.14
/3 = /3
M = 0.38
After I did my traditional method I then multiplied 0.38 by 0.04 which equaled $1.52.
So therefore Julia spent only one minute and 52 seconds on the phone.
I think there is another way to solve this problem because Let statements isnt the only possiblility. But I think it is the most efficent way.
For the most part i liked this problem because it was pretty easy and sort of fun to do (Because its math of course!!!!!) I thought part a was easier and less confusing then PartB and I also though chocie one was a little more (if you will) "friendlier" then chocie 2.
Reid Contente Math 3
ReplyDeleteChoice 1
#1.
Let 20.00 = set price a month
Let m0.04 = money she spent a minutes for class
Let 20.00 + m0.04 = total money she spent for the month
#2
A. Julia has a set price of 20.00 a month, and 0.04 per minute while calling, this month she talked for 175 minutes
20.00 + 75*0.04= 20.00 + 3= $23.00
B. 20 + m.04 = 29.12
-20 -20
M.04=9.12
.04 .04
M = 228
alicia dugan 4
ReplyDeleteletm=amount minutes in a month
letm(0.04)=coast of minutes for a call
letm (0.04+20.00=amount of minutes for a month
a) 3.175.0.08= the first exprission
b) 3.175.0.08+20.00= 29.12
my starety that i used to solve the problems is i used let statments and tradinaol method. i do not think there is another way to solve the problem because you are told to use let statments and it is the best way to the figure out the problem is to use tradional method. the additional thoghts i have from this problem is it is related to my everyday life i am always texting and calling people.(i love math)
Amber A.
ReplyDeletemath 3
Choice #1
1. let m=minutes called in that month.
let $0.04m= total amount of calls
let $0.04m+$20= total monthly bill for Julia's phone
2. a. $0.04*175+20= $27.00
b. $29.12=$0.04m+$20
$29.12-20=$9.12
$9.12/$0.04= 228 minutes is how many minutes Julia spent on the phone for a month.
Bridget O’Hanley Math: 3
ReplyDeleteChoice#1:
1.) Let 20=set price, in dollars, for phone per month
Let m=number of minutes she used for calling in that month
Let.04=price in dollars of one minute for calling
Let .04m=amount spent in dollars for calling in that month
Let 20+.04m= total cost in dollars for that month
20+.04m
2.) A) 20+.04m ; m=175
20+.04 x 175
(.04 x 175=7)
20+7=27
She would spend $27 that month on her phone.
B) $29.12
$20.00 set cost per month
29.12(total cost)-20(set cost per month) =9.12(cost of calling minutes)
9.12(cost of minutes)/.04(cost of one minute) =228(minutes used)
First, I used let statements describing the set price per month, the number of minutes used in that month, the cost per minute, total cost of minutes in that month, and the total cost of minutes and set price for that month.
In the second problem, I used the equation from the first problem and substitute in for the variable. So, I put 175 in place of the “m”. Then I multiplied the .04 by 175 and I got 7. The next step was to add the 7 to the 20 for the set cost per month. That gave me $27, the cost of her phone bill for that month.
For part B, it told us the cost of her phone bill was $29.12. You have to subtract the set cost (20) from the total cost (29.12) and my difference was 9.12. Then you have to divide the 9.12 (amount spent on minutes for calling) by the cost for one minute (.04) and that gives you 228. That means Julia used 228 minutes for calling this month.
I don’t think there is any other way to solve this problem. I solved it the only way I know. There may be another way to solve this problem but this way is the easiest.
I liked this problem because I really like doing let statements and doing algebra. It is my favorite kind of math so I would like to see more blog questions like this one.
Sean T
ReplyDeleteClass:2
1)M= The number of mins called in a month.
M+20.00= The cost of the set price of the month.
M+20.00+0.04= The cost of the calls in the month.
M+M+M+0.04+0.04+20.00= The grand total of her monthly bill
2a)M+M+M+0.04+0.04+20.00=175
---------------------------------------------- M+M+M+0.04+0.04+20.00=175
-20.00 -20
M+M+M+0.04+0.04=155
-0.04=0.000258064
M+M+M+0.04=0.000258064
-0.04=155.00031
M+M+M=155.00031
_________________________________________________
2)728 mins
29.12/0.04=728
She spent 728 talking on her phone for that month
Gian M
ReplyDeleteClass 4
Let M= How much Julia spends on calls
Let M (0.04)= How much julia spends on a minutes she spends on calls
Let M (0.04)+ 20 dollars= How much julia spends a month on phone calls
replace m with 175 (0.04)+20.00= $195.4
29.12/ (0.04 = 28.95 As final answer
J.P Hebert
ReplyDeleteClass:3
1)M= The number of mins called in a month.
M+20.00= The cost of the set price of the month.
M+20.00+0.04= The cost of the calls in the month.
M+M+M+0.04+0.04+20.00= The grand total of her monthly bill
2a)M+M+M+0.04+0.04+20.00=175
------------------------------------------------
M+M+M+0.04+0.04+20.00=175
-20.00 -20
M+M+M+0.04+0.04=155
-0.04 0.000258064
M+M+M+0.04=0.000258064
-0.04=155.00031
M+M+M=155.00031
______________________________________________
2B)728 minutes 29.12/0.04=728
math: 2 problem 1
ReplyDelete1.) let m= number of minutes Julia used in one month.
let 4m= Julia's phone bill for that month.
2.)
a.)4*175= 4.50 so she would have to pay :$4.50 for that month.
b.)29.12*4= 728 so that means that she used 728 minutes in that month.
Lexi W. 3 class
ReplyDelete1). Let m = the number of minutes Julia is on the phone
Let .04m = total extra money from minutes
Let .04m + 20 = the total Julia spends that month
.04m+20= total
2). a. Julia would spend 23 dollars that month.
b. Julia would be on the phone for 708 minutes that month .
Assignment 1
ReplyDeleteNathan P
math 3
1) let m= minutes
let m*0.04= coast of minutes
let m*0.04+20.00= total coast of plan in dollars
2)a. 175*0.04+ 20= $27.00 a month
b. (29.12-20)/0.04= $228
Christian T Class 3
ReplyDelete1. 1050 x 7
1050 x (7x)
2a. 525 x 2 + 2200 = 3250meters
525 is the distance from home to park, so I times them by 2, 525 to park and 525 home, then I added 2200 meters for around the park.
2b. 17850 - 7350 = 10500 meters 17850 is the total for one week. I took 525 and times by 7, for a week and then subtracted 7350 from 17850 to give me 10500 meters around the park for 1 week.