Goran made 6 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 6 necklaces was $33.60 . If the beads cost $2.90 for each necklace, how much did each pendant cost?

Answers

Answer 1
Answer: 2.90*6=17.40
33.60-17.40=$16.20
16.20/6=$4.05

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What is the solution to the equation 3/4 (4c + 16)= 2c+9

c=

Answers

If you would like to solve the equation 3/4 * (4 * c + 16) = 2 * c + 9, you can calculate this using the following steps:

3/4 * (4 * c + 16) = 2 * c + 9
3/4 * 4 * c + 3/4 * 16 = 2 * c + 9
3 * c + 12 = 2 * c + 9
3 * c - 2 * c = 9 - 12
c = - 3

The correct result would be - 3.
1st -- multiplying the left side = 3c+12 which equals to 2c+9 then subtracting 2c from both sides which equal to the c=-3. Answer is -3.

Simplify each complex fraction. Show all work please

Answers

invert an multiply

(a/b)/(c/d)=(a/b)(d/c)=(ad)/(bc)


1..
(4x/45)/(12x/25)=(4x/45)(25/12x)=(100x)/(540x)=5/27

2.
(x/9)/(3x/2)=(x/9)(2/3x)=(2x)/(27x)=2/27

3.
(7x/9)/(49/3x)=(7x/9)(3x/49)=(21x^2)/(441)=(x^2)/21

4.
(2x^2y/3yz)/(6/xz)=(2x^2y/3yz)(xz/6)=(x^3)/(9)

5. (4y-3x)/(3xy+y^2)

6. (-9x+6)/(8x+6)

7. (yx^2+y^2)/(x^2+xy^2)

8. x^-1=1/x
(x^2)/(4x+1)




In ΔDEF, the measure of ∠F=90°, ED = 65, DF = 33, and FE = 56. What ratio represents the cosine of ∠D?

Answers

Answer:

33/65

Step-by-step explanation:

Answer:

.51

Step-by-step explanation:

Which numbers are solutions of the equation?

|5 – 4x| – 3 = 4

Answers

|5-4x|-3=4\ \ \ /+3\n\n|5-4x|=7\iff5-4x=7\ \vee\ 5-4x=-7\n\n-4x=7-5\ \vee\ -4x=-7-5\n\n-4x=2\ /:(-4)\ \vee\ -4x=-12\ /:(-4)\n\nx=-(2)/(4)\ \vee\ x=(-12)/(-4)\n\nx=(1)/(2)\ \vee\ x=3

Dennis had a piece of rope that was 2.7 m long. He cut the rope into 3 equal pieces. Was each piece of rope greater than or less than 1 m? 

Answers

2,7\ m\ :\ 3\ =\ 0,9\ m

0,9\ m\ <\ 1\ m

 less than 1 m



2,7\ m:3=0,9\ m\n 0,9\ m<1\ m\n \n Answer: Each\ piece\ of\ rope\ are\ less\ than\ 1\ m.

1. Which of the following is equivalent to x5y2/xy2 when x ≠ 0 and y ≠ 0? A. x6y5
B. x5y
C. x4y
D. x4

Answers

x5y2/xy2=x5   .y2/x  . y2, simplifying by y², it becomes x5/x, simplify by x, we found x5/x= x4
the answer is 
D. x4