Humuhumunukunukuapuaa - Reef triggerfish » Mathematics

WORD PROBLEMS! 10POINTS?

admin — Sat, 14 Jan 2012 11:11:36 +0000

Shada girl asked:

1. Elena has bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy? Write a system of equations to model the problem if x represents the number of parrotfish Elena bought, and y represents the number of triggerfish she bought.
x + 7y = 320
y = 7x

x + y = 7
y = 320x

x + y = 320
y = 7x

x – y = 320
y = 7x

2. Elena has bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy?
280 parrotfish, 40 triggerfish

180 parrotfish, 140 triggerfish

120 parrotfish, 200 triggerfish

40 parrotfish, 280 triggerfish

3. Anita and Joelle bowl together, and their combined total scores for one game was 425 points. Anita’s score was 40 less than twice Joelle’s. What were their scores? Write a system of equations to model the problem if x represents Joelle’s score, and y represents Anita’s score.
x + y = 425
y = 2x – 40

x + y = 425
y = 2x + 40

x – y = 425
y = 2x – 40

x + y = 40
y = 2x – 425

4. Anita and Joelle bowl together, and their combined total scores for one game was 425 points. Anita’s score was 40 less than twice Joelle’s. What were their scores?
Joelle: 270, Anita: 155

Joelle: 180, Anita: 245

Joelle: 140, Anita: 285

Joelle: 155, Anita: 270

5. In a single weekend, 840 people visited a local zoo. The number of people who visited on Saturday was 30 more than twice the number of people who visited the zoo on Sunday. How many visitors did the zoo have on each day?
Saturday: 430 visitors
Sunday: 410 visitors

Saturday: 570 visitors
Sunday: 270 visitors

Saturday: 510 visitors
Sunday: 330 visitors

Saturday: 610 visitors
Sunday: 230 visitors

Algebra 1 Help (Linear Equations Story Problems)?

admin — Sun, 18 Sep 2011 14:30:59 +0000

asked:

Hey all, thanks for looking. I need some help on this practice test for my finals on Friday.
I hate, hate, **** story problems and it would be much appreciated if someone could help me with these.
1. Elena has bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy? Write a system of equations to model the problem if x represents the number of parrotfish Elena bought, and y represents the number of triggerfish she bought.

x + 7y = 320
y = 7x

x + y = 7
y = 320x

x + y = 320
y = 7x

x – y = 320
y = 7x

2. Elena has bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy?

280 parrotfish, 40 triggerfish

180 parrotfish, 140 triggerfish

120 parrotfish, 200 triggerfish

40 parrotfish, 280 triggerfish

x + y = 425
y = 2x 40

x + y = 425
y = 2x + 40

x – y = 425
y = 2x – 40

x + y = 40
y = 2x – 425

4. Anita and Joelle bowl together, and their combined total scores for one game was 425 points. Anita’s score was 40 less than twice Joelle’s. What were their scores?

Joelle: 270, Anita: 155

Joelle: 180, Anita: 245

Joelle: 140, Anita: 285

Joelle: 155, Anita: 270

Saturday: 430 visitors
Sunday: 410 visitors

Saturday: 570 visitors
Sunday: 270 visitors

Saturday: 510 visitors
Sunday: 330 visitors

Saturday: 610 visitors
Sunday: 230 visitors
I actually know the answer to the second one, so no answer needed for that one. Thanks!

WHAT IS THE ANSWER? 10POINTS?

admin — Thu, 14 Jul 2011 23:17:42 +0000

x + y = 7
y = 320x

x + y = 320
y = 7x

x y = 320
y = 7x

2. Elena has bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy?
280 parrotfish, 40 triggerfish

180 parrotfish, 140 triggerfish

120 parrotfish, 200 triggerfish

40 parrotfish, 280 triggerfish

x + y = 425
y = 2x + 40

x y = 425
y = 2x 40

x + y = 40
y = 2x 425

4. Anita and Joelle bowl together, and their combined total scores for one game was 425 points. Anita’s score was 40 less than twice Joelle’s. What were their scores?
Joelle: 270, Anita: 155

Joelle: 180, Anita: 245

Joelle: 140, Anita: 285

Joelle: 155, Anita: 270

Saturday: 570 visitors
Sunday: 270 visitors

Saturday: 510 visitors
Sunday: 330 visitors

Saturday: 610 visitors
Sunday: 230 visitors

urgent help! 10 easy points to the first to answer correctly? and 5 stars?

admin — Tue, 24 May 2011 17:40:56 +0000

yayaz asked:

give me the steps please!?!?!

-thanks!

1.) Elena has bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy? Write a system of equations to model the problem if x represents the number of parrotfish Elena bought, and y represents the number of triggerfish she bought.

a.) x + 7y = 320
y = 7x

b.) x + y = 7
y = 320x

c.) x + y = 320
y = 7x

d.) x-y = 320
y = 7x

http://answers.yahoo.com/question/index;_ylt=AhEg.n6K.9qdeLCUZ8MqLozty6IX;_ylv=3?qid=20110124134516AAXfUo1

Algebra help? PLEASE?

admin — Sun, 26 Dec 2010 08:10:43 +0000

Kelsi asked:

K… so i had a quiz i took where i missed two questions…and i can’t for the life of me figure out why i missed them. Can anyone help me?
I need you to show me exactly how to work the problem… cos i need to understand why you got that answer.

The first question is: Elena has bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy? Write a system of equations to model the problem if x represents the number of parrotfish Elena bought, and y represents the number of triggerfish she bought.

I said the answer was: x + 7y = 320 y = 7x

but the real answer is: x + y = 320
y = 7x

Why?

The second question is: Anita and Joelle bowl together, and their combined total scores for one game was 425 points. Anita’s score was 40 less than twice Joelle’s. What were their scores?

i said the answer was:
Joelle: 270, Anita: 155

but the real answer was: Joelle: 155, Anita: 270

why? PLEASE HELP! [:

Algebra help?

admin — Mon, 02 Aug 2010 20:15:44 +0000

Rebecca asked:

PLEASE HELP ME WITH THESE PROBLEMS….IM STUCK!!
I would really appriciate it! :]

1. Elena has bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy? Write a system of equations to model the problem if x represents the number of parrotfish Elena bought, and y represents the number of triggerfish she bought.
(Points: 1)
a. x + 7y = 320
y = 7x

b. x + y = 7
y = 320x

c. x + y = 320
y = 7x

d. x y = 320
y = 7x

2. Elena has bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy?
(Points: 1)
a. 280 parrotfish, 40 triggerfish

b. 180 parrotfish, 140 triggerfish

c. 120 parrotfish, 200 triggerfish

d. 40 parrotfish, 280 triggerfish

b. x + y = 425
y = 2x + 40

c. x y = 425
y = 2x 40

d. x + y = 40
y = 2x 425

4. Anita and Joelle bowl together, and their combined total scores for one game was 425 points. Anita’s score was 40 less than twice Joelle’s. What were their scores?
(Points: 1)
a. Joelle: 270, Anita: 155

b. Joelle: 180, Anita: 245

c. Joelle: 140, Anita: 285

d. Joelle: 155, Anita: 270

b. Saturday: 570 visitors
Sunday: 270 visitors

c. Saturday: 510 visitors
Sunday: 330 visitors

d. Saturday: 610 visitors
Sunday: 230 visitors

Some algebra confusion.10 points to the best answer?

admin — Fri, 26 Mar 2010 02:19:57 +0000

Yoyoyo R asked:

Choose the correct answer.

Elena has bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy? Write a system of equations to model the problem if x represents the number of parrotfish Elena bought, and y represents the number of triggerfish she bought.
x + 7y = 320
y = 7x

x + y = 7
y = 320x

x + y = 320
y = 7x

x- y = 320
y = 7x

2. For each of the following questions, choose the correct answer.

Elena has bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy?

280 parrotfish, 40 triggerfish

20 parrotfish, 140 triggerfish

120 parrotfish, 200 triggerfish

40 parrotfish, 280 triggerfish

3. For each of the following questions, choose the correct answer.

Anita and Joelle bowl together and their combined total score for one game was 425 points. Anita’s score was 40 less than twice Joelle’s. What were their scores? Write a system of equations to model the problem if x represents Joelle’s score, and y represents Anita’s score.

x + y = 425
y = 2x – 40

x + y = 425
y = 2x + 40

x – y = 425
y = 2x – 40

x + y = 40
y = 2x – 425

math quiz help please?

admin — Tue, 12 Jan 2010 00:14:06 +0000

Nick asked:

b. x + y = 7
y = 320x

c. x + y = 320
y = 7x

d. x y = 320
y = 7x

b.180 parrotfish, 140 triggerfish

c.120 parrotfish, 200 triggerfish

d.40 parrotfish, 280 triggerfish

b. x + y = 425
y = 2x + 40

c. x y = 425
y = 2x 40

d. x + y = 40
y = 2x 425

b. Joelle: 180, Anita: 245

c. Joelle: 140, Anita: 285

d.Joelle: 155, Anita: 270

b.Saturday: 570 visitors
Sunday: 270 visitors

c. Saturday: 510 visitors
Sunday: 330 visitors

d. Saturday: 610 visitors
Sunday: 230 visitors