Question

HELP PLEASE....
MEDALS WILL BE REWARDED TO FIRST AND BEST ANSWER...small math word problem

Answer 1

This is the word problem the debate club needs $240.00 to attend a debate tournament the club decides to sell cups of iced tea and lemonade at baseball games. iced tea will be sold for $0.50 and lemonade will be sold for $0.80 per cup

Answer 2

the first question to it is write an equation to find how many cups of each bevergae must be sold to rais $240.00 My answer to this one was: x=number of cups of iced tea y=number of cups of lemonade 0.5x+0.8y=240, 5x+8y+2400, 8y+-5x+2400

Answer 3

the second question to this problem was: Graph the equation. what are the x- and y-intercepts my answer was: x-intercept- y=0, -5/8x+300=0, -5/8x=-300 x=-300/(-5/8), x=-300(-8/5), x=2400/5 x=480, x-intercept = (480,0) y-intercept- x=0, y=-5/8(0)+300, y=300 y-intercept = (0,300)

Answer 4

but this part of the question also acts for a graph i dont know how to graph this

Answer 5

5

Answer 6

jk

Answer 7

The first equation is almost right:
\(0.5x+0.8y=240\) This would probably be an acceptable answer.
\(5x+8y=2400\) I assume this was what you meant for the second step and would also be acceptable.
\(8y+-5x+2400 \) I may be confused on the question, but this doesn't make any sense to me. I think you should have stopped at step two.

Answer 8

To graph the equation, first solve for y.

Answer 9

And thank you for showing your attempt when asking the question. That shows honest effort.

Answer 10

8y+-5x=2400 i mean to put an = sign and not a +
i did this to put 8y first

Answer 11

I don't understand why you are subtracting \(5y\).

Answer 12

and i think i did solve for y in the second part of the question which was
y=-5/8x+300

Answer 13

\(5x+8y=8y+5x\)

Answer 14

so was my solving for y correct

Answer 15

Still checking, it's kind of hard to read in paragraph form.

Answer 16

oh sorry about that

Answer 17

\(5x+8y=2400\)
\(8y=-5y+2400\)
\(y=-\frac{5}{8}y+300\)
Yes, you solved for y correctly. Now I also see where the -5x comes in. Sorry.

Answer 18

The y's on the right should be x's.

Answer 19

ok thanks and yeah sorry about the paragraph typing

Answer 20

Live and learn. No problem.

Answer 21

so how would i graph this equation
and also the second question for this problem asks to graph and find x- and y-intercepts i think i did that but i cant graph it

Answer 22

\(0=-\frac{5}{8}x+300\)
\(-\frac{5}{8}x=300\)
\(x=-480\) y=intercept - also correct.

\(5x+8y=2400\)
\(8y=2400\)
\(y=300\) x-intercept - positive, not negative.

Answer 23

Are those the values that you had?

Answer 24

so i think thats what i put correct?
or was three any problems with it ?

Answer 25

I think you may have dropped the negative when you typed it in. Not a problem as long as it matches what is on your paper in front of you.

Answer 26

Or I added too many negatives.
(480,0) and (0,300) are the intercepts.

Answer 27

ok thanks
so do i graph using the equation found in question 1 or in question 2
there is also question 3 for this problem but to answer it i need the graph from question 2

Answer 28

As for the graph....
\(y=-\frac{5}{8}y+300\)
Start with the y-intercept at (0,300).
The slope is \(-\frac{5}{8}\) or \(\frac{rise}{run}\)
You have a negative so count up 5 units and left 8 units to find the next point. Left for a negative slope and right for a positive slope.

Answer 29

small question before we continue
in your equation you have
y= -5/8y+300
shouldnt it be
y= -5/8x +300

Answer 30

Yes it should.

Answer 31

Thank you for noticing the error. That shows you are thinking on your own and learning!

Answer 32

your welcome and yes i do want to learn as much as possible so i can be able to do it on my own in the future

Answer 33

but graphing for me was always hard and still is hard thats one thing in math that i cannot understand yet

Answer 34

\(y=mx+b\)
m is the slope and b is the y-intercept

Answer 35

I would suggest drawing the graph in blocks of 100 units.

Answer 36

Start with the point (300,0) the y-intercept.