Word Problem
posted by Shana .
Can someone help me figure out the equation? I am not good at figuring this out.
Investing her bonus. Donna invested her $33,000 bonus and received a total of $970 in interest after 1 year. If part of the money returned 4% & the remainder 2.25%, how much did she invest at each rate?

x = interest at 4% so
interest at4% = 0.04x
How much money is left if we take away x? It is 33,000x. That was invested at 2.25% so
interest earned at 2.25% =
0.0225(33,000x).
If we sum the two interest amounts we have $970.
amt at 4% + amt at 2.25% = 970.
Just substitute and solve for x.
Post your work if you get stuck. 
Thank you for helping me understand how to do these questions! You are wonderful!

Can someone help me figure out the equation? I am not good at figuring this out.
Investing her bonus. Donna invested her $33,000 bonus and received a total of $970 in interest after 1 year. If part of the money returned 4% & the remainder 2.25%, how much did she invest at each rate? 
gordy has 187 cds.he wants to put them on shelves.each shelf holds 42 cds.how many shelves he be able to completely fill whit cds?

Answer is posted above.

Help! I still cant figure this out.
742.50.0225x = 33000. Is this correct so far? Thank you! 
No, I think you dropped the 0.04x but everything else is ok.
0.04x + 0.0225(33,000x)=970
0.04x + 742.50  0.0225x = 970
I'll let you finish.
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