# Math

posted by Stuart

1. Ms. Sue

You try it the same way I showed you on your other post.

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Please help with these 5 problems! I have the solutions but I don't understand how to get them! 1. Perform the indicated operations and simplify: [(2/x)-1]/(x^2 -4) 2. Subtract and simplify: [12/(x^2 -4)] - [(3-x)/(x^2 + 2x)] 3. Perform …

3. ### math

-12d - 9= 15d+9
4. ### Algebra

I am trying to factor, but I can't seem to get this one. The question is: -15d*2*-2d+8. It is actually -15d squared but I didn't know how to right that without it being confusing. Anyways I changed it so now it says -1(15d-2d+8). Then …
5. ### Math Algr.2

3/5(15d+20)-1/6(18d-12)=38
6. ### math

Please explain the order of operations for the formula 30 divided by 5 times 6 Do I do the multiplication first, or do I do the the operations from left to right?
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A hospital performs 3 types of operations. The first type takes 30 minutes, and they charge \$1000 for it. The second type takes 1 hour, and they charge \$1500 for it. The third operation takes 2 hours, and they charge \$2000 for it. …

12d-9=15d+9
9. ### Math

There were d passengers in the train. 15% of all of them went in the first car, 20% went in the second car. How many passengers were in the rest of the train?
10. ### Algebr

what is the simpler form of the expression (5d+2)(3d^2+8d-3) A: 15d^3 + 46d^2 + 1d - 6 B: 15d^3 + 34d^2 - 1d - 6 C: 15d^3 - 34d^2 + 1d - 5 D: 15d^3 + s4d^2 - 1d - 5 My answer is A or B.

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