Algebra - formulas, expressions involving formulas

Contents
 Definitions Formulas Write code & expressions using formula formats Homework

Day14, Definitions
 Value - the total worth   Distance - a length, a unit measure   Area - the number of square units   Volume - the number of cubic units   Perimeter - distance around a plane figure   Sum - result of addition   Product - result of multiplication   Difference or remainder - result of subtraction   Quotient - result of division

Area & Other Formulas
 Rectangle Arearectangle= (base)(height) Arearectangle= bh Arearectangle= (length)(width) Arearectangle= lw     Triangle Areatriangle= (base)(height)/2 Areatriangle= bh/2 Areatriangle= ½bh           Parallelogram Areaparallelogram= (base)(height) Areatriangle= bh           Circle Areacircle= (radius)2 Areacircle= r2           Trapezoid Areatrapezoid= (height)((base1) + (base2))/2 Areatrapezoid= (h)((b1) + (b2))/2 Areatrapezoid= ½(h)((b1) + (b2))
Other Formulas
 (Distance) = (Rate)(Time) dirt D=RT   (Value of Stuff) = (Number of Items)(Value of one item) (Value of Stuff) = (#)(\$)

Write code & expressions using formula formats
 Write the code & expression   1. area of a triangle in which the base is 4 units longer than the height. answer (area) (base)(height)/2 (4 units longer than the height)(height)/2 ((height) + 4)(height)/2 (x + 4)(x)/2 x(x+4)/2     2. the area of a circle in which the radius is one more than a number answer (area) (pi)(radius)^2 (pi)(1 + (number))^2 (pi)(1 + x)^2   3. the distance traveled at a certain speed for 12 hours answer (distance) (rate)(time) (rate)(12) (x)(12) 12x   4. the value of five dimes answer (value) (#)(\$) (5)(10) 50 cents   5. the value of some dimes answer (value) (#)(\$) (some)(10) 10x

Homework
 Qu. 1 & 2: Write the code & expression   1. the perimeter of a triangle in which the smallest side is one less than the middle and the largest side is one more than the middle   2. the total value of the following coins: some pennies, five more nickels than pennies, one fewer quarter than the number of pennies   3. Write an algebraic area problem and answer it. Answers