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! [:

MISSY18 asked:

1.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.whats their sores?

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?

BEST ANSWER GETS 10 POINTS.

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

school kid asked:

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?

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.

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?

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?