Question

Help please

Answer 1

Let's start with the first problem.
So Part 1 states that they want an equation of the total cost to the UK.
According to the introductory sentences, how much do you have to spend to call one minute in the UK?

Answer 2

@zarkam21

Answer 3

23 cents

Answer 4

Alright. So that 23 cents means 23 cents for every minute in the UK.
We have to write a formula for that, and a formula always includes a x and y variable.
The standard equation for a linear line is y=mx. What do you think m would be?

Answer 5

You there?

Answer 6

y=23x

Answer 7

Very close :)
It's actually supposed to be y=.23x, because it is 23 CENTS.
Ready to go on?

Answer 8

@zarkam21

Answer 9

Sure that would be the answer to question 1 part I right?

Answer 10

Yes. Did you get that down?

Answer 11

Yes !

Answer 12

x=.21y for part II

Answer 13

Alrighty. Knowing what you've learned from Ms. Sarah the Harvard teacher (JK LMAO) Try number 2

Answer 14

Oh nvm
lmao good job, just switch x and y :D
Y is always the outcome variable

Answer 15

So i got that right? !

Answer 16

clap

Answer 17

Haha

Answer 18

Yeash
Try number three by yourself :D You're actualluy catching on very fast

Answer 19

.75>-(.21y)+(.23x)

Answer 20

I'm crying with tears
GOOOOOOOD JOB HOLY
I caught two mistakes however :D
The value 75 is not CENTS, it's dollars, so it can be 75 without the decimal point.
The other mistake is that the inequality sign is wrong. Since it has to be up to 75 dollars, the inequality sign should have a line underneath like this \[\ge\]

Answer 21

\[75\ge(.21y)+(.23x)\]

Answer 22

My tears ;-;-;

Answer 23

Lmao

Answer 24

And then i would graph 75≥(.21y)+(.23x) this on the graph right?

Answer 25

yes

Answer 26

ty @Vocaloid for the back up :)

Answer 27

LIke this

Answer 28

Remember to shade the right part!

Answer 29

Alright ready for part 5?

Answer 30

And yes ready

Answer 31

Alrighty
So all you need is your graph. If you look at the graph, do you think 200 minutes on each country would work? Tell me how you got your answer

Answer 32

Yes because it is shaded at the 200 region

Answer 33

Da answer is noh ;-;
Make a coordinate out of the two numbers.
(200,200)
If you plug that in, it is nowhere close to the shaded part.

Answer 34

OH i see what you mean

Answer 35

i thought you meant (200,0) and (0,200)

Answer 36

It meant both :)
So I guess I did mislead you a bit
Sorry about that

Answer 37

So the answer for Part V would be No, because at the coordinate (200,200) the graph is not shaded meaning both of the countries cannot call for a total of 200 minutes without exceeding the value of your calling card

Answer 38

You right :D
Good job

Answer 39

Thank you so much.