A tree casts a shadow that is 14 ft long at the same time that a nearby 2-foot-tall pole casts a shadow that is 1.75 ft long. How tall is the tree?
14/x = 1.75/2
1.75x = 28
x = 16
400
Estimate the total amount of a bill of $69.99 with a 15% tip
$80.50
500
|x+3| + 4 = 4
x = -3
500
(2/3)n = 4n(10/3) - (1/2)
no solution
500
Solve for r.
A = P + Prt
r = (A - P)/Pt
500
Every dimension of a 2-by-4 inch rectangle is multiplied by 1.5 to form a similar rectangle. What is the ratio of the perimeters? What is the ratio of the areas?
Ratio of perimeters - 1.5 or 3/2
Ratio of areas - 9/4
500
Peter earns $32,000 per year plus a 2.5% commission on his jewelry sales. Find Peter's total salary for the year when his sales are valued at $420,000.