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

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.
(Points: 1)
a. x + y = 425
y = 2x 40

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

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?
(Points: 1)
a. Saturday: 430 visitors
Sunday: 410 visitors

b. Saturday: 570 visitors
Sunday: 270 visitors

c. Saturday: 510 visitors
Sunday: 330 visitors

d. Saturday: 610 visitors
Sunday: 230 visitors

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?