Question

A phone company offers two monthly plans. Plan A costs $16 plus an additional $0.10 for each minute of calls. Plan B costs $12 plus an additional $0.15 for each minute of calls.
For what amount of calling do the two plans cost the same? What is the cost when the two plans cost the same? O.o....word math problems are just bleh...help please?

Answer 1

Let the amount of calling be x.
16 + 0.10x = 12 + 0.15x
Solve this linear equation and you will get the value of x. Substitute the value of x in any one of the equations and you will get the amount when the two plans cost the same.
Just have a try!!

Answer 2

Sure :) will you check my answer when I try it out, please?

Answer 3

sure!!

Answer 4

So I got x = 4/5...

Answer 5

so far so good...bad?

Answer 6

I over think things a lot...fair warning

Answer 7

See, 0.05x = 4
x = 400/5 = 80

Answer 8

OH I think I got it! so the amount of minutes is 80 and the cost is $24!!!

Answer 9

Yes!!! You got it!! Congo!!

Answer 10

congo? I like that! what does it mean?

Answer 11

Once I kind of have the equation set up it gets a bit easier for me...but I hate word problems...math in general but seriously...word problems and fractions -.-

Answer 12

congratulations!!

Answer 13

itzz a bit difficult to transform word problems into equations, but you gotta practice them too.

Answer 14

Could I give you another one for you to set up for me to solve and then check my answer? I'm doing some practice problems right now trying to learn this stupid thing...

Answer 15

Yeah..!!

Answer 16

Jose is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices.

Company A charges $90 and allows unlimited mileage.
Company B has an initial fee of $55 and charges an additional $0.70 for every mile driven.
For what mileages will Company A charge less than Company B?
Use m for the number of miles driven, and solve your inequality for m

Answer 17

See , Given that 90 should be less than 55 + 0.7m
So, 90 < 55 + 0.7m
Just solve this inequality.

Answer 18

m = 50?

Answer 19

See . It is a inequality. You cant get a equality sign.
It is m > 50
When m>50 A charges less than B

Answer 20

is that really it? god I wish online school explained it in an easier way...

Answer 21

can we try another? I'm almost done and I'm actually really LEARNING this :D

Answer 22

I promise to write you a hell of a testimonial :3

Answer 23

ohkk fi9

Answer 24

fi9?

Answer 25

fine

Answer 26

haha I fail at understanding the lingo of the internet...that's what I get for being an english nerd...it's also why my math is abysmal

Answer 27

Hong is putting money into a checking account. Let y represent the total amount of money in the account (in dollars). Let x represent the number of weeks Hong has been adding money. Suppose that x and y are related by the equation 40x + 350 = y .

Answer the questions below.

Note that a change can be an increase or a decrease.
For an increase, use a positive number. For a decrease, use a negative number.

What is the change per week in the amount of money in the account?
What was the starting amount of money in the account?

Answer 28

For the change per week , we calculate it by taking 1st and 2nd week amounts,i.e, substitute x =1 and x=2 in the given equation. Then subtract the values. Just try it. And tell me the answer after you are sure you understood it.

Answer 29

x = 1 and x = 2 or did you mean y? we substitute x twice?

Answer 30

You get a value of y right. Let the value of y in the first week be y1 and in the second week be y2. You have been asked to find the change per week i.e, Amount in second week - Amount in first week = y2 - y1

Answer 31

You got it??

Answer 32

I think I got y = 390 and y = 430 and then subtracted that gave me y = 40

Answer 33

You are right. Did you understand how it came?

Answer 34

Yep, you explained it well :)

Answer 35

Now for the second question, you have to find the money at the starting ,i.e, when the number of weeks is 0. So tell me what you would do?

Answer 36

substitute 0 for x?

Answer 37

or is it 1?

Answer 38

hellooooo over thinking....

Answer 39

Yes!!! you got it. Just substitute x = 0 in the equation and you will get the answer

Answer 40

OK then yay I did get it the first time!

Answer 41

so 350 is the answer?

Answer 42

Yup..!!

Answer 43

BAM I'm learning this dumb stuff that I don't like but is probably still very important!

Answer 44

It surely is very important!!

Answer 45

that's it for the word problems! thank you so much! I;m off to take my test :D

Answer 46

All the best!!!