Question

I need sum1 to check my answer please :)


Baird and Lon earned points for the number of books and magazines they read over the summer. The average of the two boys’ points can be expressed as (5.4p+5)+(8+3.2p) Divided by 2, , where p represents the number of points earned per book.



What is the average when p = 3?

My answer is 19.4

Answer 1

@Haichi

Answer 2

Yeah about 20

Answer 3

Im going to out 19.4 as my answer to be on the safe side cuz it doesnt say estimate xD

Answer 4

With*

Answer 5

Okay >_> Suh i haz one moar question :l

Answer 6

The question has no brackets.
If the question were
f(p)=((5.4p+5)+(8+3.2p))/2, then when p=3, f(p)=19.4.
But the question says:
(5.4p+5)+(8+3.2p) Divided by 2
which literally means, according PEMBAS,
(5.4p+5)+((8+3.2p) /2), that would give a different answer.

Answer 7

O_O

Answer 8

What? That makes no sense. I followed pemdas its parenthesis first AND thats wat i did. I did what's inside the parenthesis and i added them and divided it by two.

Answer 9

@Haichi Do u know what @mathmate is talking about?

Answer 10

yes

Answer 11

Okay sum one please explain step by step -.-

Answer 12

Haichi ur here u can help >:l

Answer 13

ok xD

Answer 14

Im so bad a math i swear to jebus -.- Alright so what did @mathmate mean by "according PEMBAS,
(5.4p+5)+((8+3.2p) /2), that would give a different answer."?

Answer 15

Pemdas= Parenthese Exponets Multiplication Division Addition Subtraction

Answer 16

I know that :l Did i not follow it right? Hold on let me redo it.

Answer 17

@Mateaus PLEASE ANYONE JAST HALP MEEEEEE

Answer 18

@Haichi I should just give up right? ~_~

Answer 19

Sure y not

Answer 20

SUCH A GREAT SPORT XD

Answer 21

xD

Answer 22

I CANT GIVE UP I GTTA FINISH THIS

Answer 23

ok

Answer 24

Okay....so i need to focus >_< Alright so 5.4*3+5

Answer 25

yes and that equals to wat?

Answer 26

Uhm 21.2?

Answer 27

WAIT NO ITS 43.2

Answer 28

u have to add 5+3 first and THEN multiply it by 5.4 right?

Answer 29

no

Answer 30

Multiply first then add

Answer 31

-.- So it is 21.2?

Answer 32

yes

Answer 33

OMG I PASSED :D 80% is good enough for me XD

Answer 34

XD

Answer 35

@XceceX congratulations.
and thank you @haichi for the excellent help!

Answer 36

Thank :D @mathmate

Answer 37

thanks*

Answer 38

@XceceX
@Haichi did most of the explaining. I think she deserves a medal. You only have to click on the blue/brown medal at the right of her posts.

Answer 39

@mathmate It is ok I understand u think ima girl by mai pfp but thats my gf Im a guy :D

Answer 40

@haichi Sorry I made assumptions, and the wrong one! :(
I'll be more careful in the future!

Answer 41

XD @mathmate it is alright U seem chill

Answer 42

:)