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Using Formulas and Literal Equations
Section 3.6
Literal equation is an equation that involves two or more variables.
Formula is a literal equation that states a rule for a relationship among quantities.
VOCABULARY
Example: C = 2π r
Use the formula C = 2 π r to find the radius, r , for each circumference below. Round your answers to the nearest hundredth.1. C = 25 inches 2. C = 12 feet
3. C = 33 cm 4. C = 126 meters
Page 152 36 to 41
Use the formula c = 5/9 ( F – 32 ) to convert each temperature from Fahrenheit to Celsius.
1. 59 F ͦ 2. 14 Fͦ3. 149 Fͦ 4. 23 Fͦ
Page 151 numbers 14 to 17
Solve each equation for the indicated variable
1. 3m + 7 = y for m 2. A + B = C for A
3. y = mx for m 4. a + bc = d for b
5. d = rt for t
Page 151
18. T = R – M19. T = M + R20. T = M – R21. B = c – a22. B = a – c 23. A = -b – c24. A = c + b 25. d = C π26.M = y – 6 x
27. w = A l
28. t = r 3
29. c = -4p 9
30. a = qm
31. x = 7 –r a
32. b = c – 2a 2
33. x = 5 – 4y 3
34. y = 2 – 3x 7
35. b = y – 3x 3