## Solmyr 2 years ago Need help Please I have to have this turned in NOW!!!! 1.Tony and Belinda have a combined age of 56. Belinda is 8 more than twice Tony’s age. How old is each?

1. BluFoot

I just helped you with this question! If you were confused you should have said so instead of closing the question!

2. BluFoot

OK we had 2 equations. x+y = 56 and y = 8 + x do you know how to solve a system of equations?

3. Solmyr

srry i was having a conversation with a teacher and i have to have this done and completed

4. Solmyr

sorta but not really

5. BluFoot

I like comparison. In both equations, solve for y=. It's already done for you in the second. Then set the two equations equal to each other, eliminating the y and solve for x.

6. Solmyr

so just 8 + x

7. Solmyr

=56

8. BluFoot

No because you have to solve for y in the first equation. You get x+y = 56 y = 56-x and y= 8 + x so 8+x = 56-x solve for x!

9. Solmyr

oh

10. Solmyr

would i first minus eight to both sides?

11. BluFoot

yes

12. Solmyr

x = 48 -x

13. Solmyr

now what?

14. BluFoot

15. Solmyr

ok so this gives me 48

16. Solmyr

alone

17. Solmyr

i mean 2x = 48

18. BluFoot

ok now divide by 2

19. Solmyr

24

20. Solmyr

can u help me with a few more

21. BluFoot

I'll help you with 1 more but you should be starting to be able to recognize the pattern and figure out how to solve it by yourself

22. Solmyr

ok

23. Solmyr

2.Salisbury High School decided to take their students on a field trip to a theme park. A total of 150 people went on the trip. Adults pay \$45.00 for a ticket and students pay \$28.50 for a ticket. How many students and how many adults went to the park if they paid a total of \$4770?

24. BluFoot

Okay here the variables (x and y) are the number of adults and the number of students. So we can say x = number of adults y = number of students These are the 2 statements: 1. A total of 150 people went on the trip 2. they paid a total of \$4770 Can you turn these into equations?

25. Solmyr

x + y = 150 x45.00 + y28.50 = 4770

26. Solmyr

????

27. Solmyr

@BluFoot

28. BluFoot

Sorry was afk for a sec. Yes that's correct. Now use substitution to solve. Solve for x or y in the first equation and plug it into the second equation

29. Solmyr

im not sure how to do that

30. Solmyr

cause first one we did comparison

31. BluFoot

Let's solve for y in the first equation x+y = 150 y= 150-x Now plug it into the second 45x + 28.5y = 4770 45x + 28.5(150-x) = 4770 now expand and solve for x

32. Solmyr

umm ok ive never seen that done before now though

33. BluFoot

OK I have to go, good luck :)

34. Solmyr

oh ok thanks