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TEA [102]
3 years ago
11

Jina made 6 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 6 necklaces w

as $33.60. If the beads cost a
total of $14.40, how much did each pendant cost?
Mathematics
1 answer:
Nonamiya [84]3 years ago
8 0

Answer:

$3.215

Step-by-step explanation:

Total cost of the beads and pendants = $33.60

Total number of necklaces = 6

Cost of beads = $14.40

To find : cost of each pendant.

Total cost of pendants = $33.69 - $14.40

= $19.29

Now, cost of each pendant = $19.29/6

= $3.215

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ELEN [110]

Answer:

This is trigonomentry

Use SOHCAHTOA

where :

s is sin

c is cos

t is tan

o is opposite (side)

h is hypotenuse (opposite of 90 degree angle)

and a is adjacent (side)

Sin = o/h

cos = a/h

tan = o/a

in this case we are looking for side BC which is the hypotenuse(h)

and we have the side adjacent(a) to angle 71

since we have a and h determine what to use SIN, COS, OR TAN?

we should use Cos

they‘ve given the angle so we should do this...

Cos71 = \frac{6.3}{h}

Cos71 = \frac{6.3}{BC}

now apply algebra...

6.3/cos71= BC

BC= 19.3507869666

BC = 19.4   (3SF)

8 0
3 years ago
PLEASE HELP PLEASE I NEED TO KNOWW
Mazyrski [523]

Answer:

35.25

Step-by-step explanation:

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2 years ago
Solving systems of equations with substitution:<br> y= 2x-4 <br>y= -x+5<br><br>help please!
Furkat [3]
<span>y= 2x-4 
y= -x+5
so

</span><span>2x-4 = -x+5
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4 0
3 years ago
Select the best answer. About how much will a $459.95 LCD TV cost including the sales tax of 8.25%?
erma4kov [3.2K]
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3 years ago
If y varies inversely with x and y=2 when x=5, what is the value of x when y=3?
Nostrana [21]

Answer:

Step-by-step explanation:

Method

Inversely in this sentence means

y = k/x    

So you first step is to find the value of k. You do that by setting up an inverse relationship with y = 2 , x = 5

2 = k/5                     Multiply both sides by 5

2*5 = 5*k/5

10 = k

Now you are able to answer the question.

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y = 10/x

3= 10/x                      Multiply both sides by x

3*x = x * 10/x

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Answer

x = 3.33 or x = 3  1/3

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