Digital SAT Math Ultimate Course

Learn problem solving from SAT paper 1, master the percent concept as divided by 100, and apply it to compute 10% of 478, confirming option B.

Create and solve an algebra equation for an assignment: use x for one-point questions and y for three-point questions, with the total points 70, yielding x + 3y = 70.

Solve a system of linear equations using substitution or elimination, illustrated by y = -3x and 4x + y = 15 to find x.

Set up and solve a total cost equation: ten hats at $3 each and cupcakes at $1 each total $71; x equals 41.

Explore algebra expressions, distinguish expressions from equations, and factor common factors, extracting the maximum powers of x and y to rewrite 6x^8y^2+12x^2y^2 as 6x^2y^2(x^6+2).

Interpret the linear equation two x plus 35 y equals 3934, with park 2 hectares and residential 35 hectares, where x is the park’s average trees per hectare.

Apply the center-radius form to the circle, use the diameter endpoints (2,4) and (2,14) to identify a vertical diameter of length 10, yielding radius 5.

Convert radians to degrees to solve for angle t. With r = 2pi/3 and t = r + 5pi/12, t = 13pi/12 radians, which equals 195 degrees.

Convert square miles to square yards using 1 mile equals 1760 yards. Square the conversion to get 4.36 square miles equals 13,505,536 square yards.

Recognize the system's equations are equivalent, reduce to 2x+3y=7, and test candidate points by substituting r values to identify the correct point.