Mathematics OpenStudy (anonymous):

How many hours is 2/3 of 1 hour and 36 minutes? PLEASE Help me answer it, i feel like im close...yet so far away! OpenStudy (anonymous):

1 hour and 36 minutes is 96 minutes, agreed? OpenStudy (anonymous):

corrrrrrect! and I get pretty stuck after that! OpenStudy (anonymous):

okay. what is one-third of 96? OpenStudy (anonymous):

okay when I type it in my calculator im getting 32! yea? OpenStudy (anonymous):

ohh so like .5 hours? OpenStudy (anonymous):

okay great! so one third of 96 is 32. what is two-thirds of 96? OpenStudy (anonymous):

would i add 32 + 32? = 64? OpenStudy (anonymous):

very good! so 2/3 of 96 minutes is 64 minutes. how many minutes in an hour? OpenStudy (anonymous):

60 so its one hour 4 minutes? OpenStudy (anonymous):

exactly! you can write your answer as 1 hour 4 minutes or (64/60) hours which is the same as 1.067 hours OpenStudy (anonymous):

and I have another question I just need to figure out what method to use: Find the sum of the solutions of the equation: 2x$^{2}$ +5x-3 OpenStudy (anonymous):

use factorisation OpenStudy (anonymous):

2 * -3 = -6 think of combinations you can use to get 5x from factors of -6 OpenStudy (anonymous):

like -6 and 1? OpenStudy (anonymous):

wait thats negative 5 OpenStudy (anonymous):

yup but -6 +1 = -5x, not 5x think of another combination OpenStudy (anonymous):

okay are we adding the two factors? So like 2 +3= 5 OpenStudy (anonymous):

yes, 2+3 =5, but 2 times 3 is 6 we want -6 so 2 and 3 is not the correct combination OpenStudy (anonymous):

okay, 6 plus -1 !! :) OpenStudy (anonymous):

very good! OpenStudy (anonymous):

go ahead and factorize it now OpenStudy (anonymous):

omg that took a long time! haha okay i got (2x+6) and (x-1) OpenStudy (anonymous):

no you should get (2x-1) and (x+3) OpenStudy (anonymous):

then do i set them both to equal zero and solve or am i done with the solution OpenStudy (anonymous):

the question asks to find the sum of the solution.. OpenStudy (anonymous):

$2x ^{2}+5x-3 =0$ $2x ^{2}+6x-x-3 =0$ $2x (x+3)-1(x+3) =0$ $(2x-1)(x-3)=0$ $x = \frac{1}{2}, -3$ OpenStudy (anonymous):

phenomenal, thank you thank you! and another thing when two slopes are parallel does that mean there slopes are the same? OpenStudy (anonymous):

yes. it also means that there is no point of intersection. OpenStudy (anonymous):

slopes cannot be parallel, only lines can be parallel. I assume you meant lines, not slopes in your question. OpenStudy (anonymous):

oh okay okay yes I meant lines. for example 2/3 and 2/3 would be parallel lines correct? OpenStudy (anonymous):

and if the question gives you a 4 quadrant grid and there is a triangle drawn on it and they ask how long is side AB , could you use the distance formula : "d= the square root of x2-x1) squared plus (y2-y1) squared ??? OpenStudy (anonymous):

yes OpenStudy (anonymous):

Okay thank you! You have truly been a help to me even so late! I am studying for my placement exam to College algebra at a community college and i think i got it i appreciate it! OpenStudy (anonymous):

you are very knowledgeable, you should consider tutoring! OpenStudy (anonymous):

lol, i wouldn't be any good at it. and you are welcome :)

Latest Questions iosangel: Factor the expression completely over the complex numbers. y^4+14y^2+49
1 minute ago 0 Replies 0 Medals axie: why do humans depend on each other for as long as we do? I feel like we should mo
14 seconds ago 6 Replies 2 Medals Mathplayer223: chemistry
19 minutes ago 2 Replies 0 Medals Mochi: Are men and women really better at different things, or are we simply taught that men are better leaders and women are better nurturers? Compose a one sente
3 minutes ago 7 Replies 1 Medal SallyUwU: heyyyy soooo I decided to do an edit ;3
1 hour ago 6 Replies 1 Medal VampireLover: Given: A = {(2, 3), (5, 1), (-3, -2), (0, 3)} What is the domain of A? 1. {-3, 0, 2, 5} 2.
1 hour ago 2 Replies 0 Medals hailey1:
2 hours ago 4 Replies 2 Medals Jane2711: What do you guys think of edit?
14 minutes ago 16 Replies 4 Medals Foreverangel: In a sentence or two, summarize the U.S. position on the embargo. Why is the U.S. keeping the embargo in place?
3 hours ago 0 Replies 0 Medals MarkSucks: I am so confused :o For her birthday party Jasmine mixed together 5 L of Brand A fruit punch and 3 L of Brand B.
3 hours ago 1 Reply 0 Medals