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 = 2 π 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 to 41

Use the formula c = 5/9 ( F – 32 ) to convert each temperature from Fahrenheit to Celsius ͦ F ͦ F ͦ F ͦ F Page 151 numbers 14 to 17

Solve each equation for the indicated variable 1. 3m + 7 = y for m2. A + B = C for A 3. y = mx for m 4. a + bc = d for b 5. d = rt for t

Page T = R – M 19.T = M + R 20.T = M – R 21.B = c – a 22.B = a – c 23.A = -b – c 24.A = c + b 25.d = C π 26.M = y – 6 x 27.w = A l 28. t = r 3 29.c = -4p a = q m 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