Acids and Carbonates

In: Science

Submitted By debuy
Words 477
Pages 2
Math Review With Answers

1. P-80 = .02P solve for P =

2. 75%x3 = 35 solve for x =

3. x (1+.09)4 = 600 solve for x =

4. 35p-50=150-2p solve for p =

5. You have two equations Y= 2x -10 and Y= 4.5x Solve for x = and Y =

6. You have a relationship between P and Q that is a straight line. One point on the line is where P = 4 and Q = 84. A second point on the line is where P = 6 and Q = 76. A third point on the line is where P = 8. What is the value of Q at the third point on the line.

7. y = 60x-0.5 + 2 Solve for y when x = 36

8. Find the first derivative of y with respect to x for y = 4x2 + 4x +8 solve for dy/dx =

9. x = (y/15)(50/y)(z/50)(35/z) solve for x =

10. 50 = 30b/(b-8) solve for b =

Answer Key:
|1. P = 81.63 |6. Q = 68 |
|2. x = 3.6 |7. y = 12 |
|3. x = 425 |8. dy/dx = 8x+4 |
|4. p = 5.4 |9. x=2.33 |
|5. X = -4, Y = -18 |10. b = 20 |

Students should be comfortable with basic “word” problems. For example:

A) Bill rides his bike from home to the university at a speed of 10.00 m.p.h.
He rides from the university back to his home at a speed of 14.00 m.p.h.
What was his average speed for the round trip?
Answer: 11.67 m.p.h. (The answer is not 12.00 m.p.h. This question reminds us…...

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