Mrs. beatty buys sketchbooks and puzzle. Each sketchbook costs 1$ and each puzzle cost 3$ wich order repreeents the cost of 3 sketchbook as the x-value the cost of 3 puzzle as y- value

Given:

Cost of each sketchbook = $1

Cost of each puzzle = $3

To find:

The ordered pair which represents the cost of 3 sketchbook as the x-value the cost of 3 puzzle as y- value.

Step-by-step explanation:

Cost of each sketchbook = $1

Cost of 3 sketchbook = $1 × 3

                                    = $3

Cost of each puzzle = $3

Cost of 3 puzzle = $3 × 3

                           = $9

Cost of 3 sketchbook = x-value = 3

Cost of 3 puzzle = y- value = 9

Here, x-value is 3 and y-value is 9.

Therefore, the required ordered pair is (3,9).

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

correct answer:

b.(19,-2)