Amy made 3 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 3 necklaces was $13.20. If the beads cost a total of $6.90, how much did each pendant cost

the cost of each pendant is $2.1

Step-by-step explanation:

Let x represent the cost of each pendant.

Amy made 3 identical necklaces, each having beads and a pendant. It means that the cost of the pendant used is $3x. The total cost of the beads and pendants for all 3 necklaces was $13.20. If the beads cost a total of $6.90, then the equation would be written as

6.90 + 3x = 13.20

3x = 13.20 - 6.90

3x = 6.3

x = 6.3/3

x = 2.1

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).