Math Is Fun Forum

I am horrible at word problems please help me... I have 5 weeks to finish my algebra class so the sooner the better
I have the answer I need help on how to get there please help me with figuring out how to get to the answer.

Problem #1 answer = $7000@11%;profit $3000
Sam M. invested part of his $10,000 bonus in a fund that paid 11% profit and invested the rest in stock that suffered a 4% loss. Find the amount of
each investment if his overall net profit is $650.

Problem #2 answer =  30,000@8%;24,000@10%
How can $54,000 be invested, part at 8% annual simple interest and the remainder at 10% annual simple interest, so that the interest earned by the two accounts will be equal?

Problem #3 answer = 400 0uncesHow much of an alloy that is 20% copper should be mixed with 200 ounces of an alloy that is 50% copper in order to get an alloy that is 30% copper?

Problem # 4 answer = 4500
If $3000 is invested at 6% annual simple interest, how much should be invested at 9% annual simple interest so that the total yearly income from both investments is $585?

Problem # 5 answer = 1and 5/7hr
Nedra and latonya Dominguez are 12 miles apart hiking toward each other. How long will it take them to meet if Nedra walks at 3 mph and Latonya walks at 1 mph faster?