  • Matrices
• Algebra
• Geometry
• Funciones
• Trigonometry
• Coordinate geometry
• Combinatorics
 Suma y resta Producto por escalar Producto Inversa
 Monomials Polynomials Special products Equations Quadratic equations Radical expressions Systems of equations Sequences and series Inner product Exponential equations Matrices Determinants Inverse of a matrix Logarithmic equations Systems of 3 variables equations
 2-D Shapes Areas Pythagorean Theorem Distances
 Graphs Definition of slope Positive or negative slope Determine slope of a line Ecuación de una recta Equation of a line (from graph) Quadratic function Posición relativa de dos rectas Asymptotes Limits Distancias Continuity and discontinuities
 Sine Cosine Tangent Cosecant Secant Cotangent Trigonometric identities Law of cosines Law of sines
 Ecuación de una recta Posición relativa de dos rectas Distancias Angles in space Inner product

Find the percentage of discount

Kenneth bought a playground slide marked down from $575 to$506. What is the discount, as a percentage?

The percent of change formula can be used to find percent of discount.

percent of discount  =
 original price – discount price ________________________ original price

Plug $575 and$506 into the formula and simplify.

percent of discount  =
 original price – discount price ________________________ original price

=

=

=  0.12

Write the number as a percent.

0.12  →  12%

The percentage of discount is 12%.