19.2 Part two questions? please help pleaseeee?

2008-06-12 7:19 pm
28: A proton has a charge of positive one and an electron has a charge of negative one. An ion contains 7 protons and 9 electrons. What is the overall charge of the ion?

29: A golf team has 5 golfers. Three of the team's players each have a -4 on their rounds for the day and the remaining players each have a -3 on their rounds. What is the team's total score?

30: Brianna withdrew $1,695 from her account through an ATM machine. Before the transaction, she had a balance of $3523.12 in her account. What is her balance now?

回答 (5)

2008-06-12 7:24 pm
✔ 最佳答案
28) -2

29) -3.6

30) 1828.12


OK YOU CHEATED

NOW I AM CHEATING

GIVE ME THE 10 POINTS.


...........................................................
2008-06-13 5:16 am
28. -2
29. -18
30. $1828.12
2008-06-15 8:52 am
i dont know that sorry
2008-06-13 2:22 am
are you kidding?
2008-06-13 2:22 am
.,kjnm;.


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