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densk [106]
3 years ago
9

A coin jar contains 10 quarters, 6 dimes, and 8 nickels. Find the probability that a dime is chosen at random

Mathematics
1 answer:
Harrizon [31]3 years ago
4 0

Answer:

6/24 - 1/4

Step-by-step explanation:

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A camera regularly priced at 295 was placed on sale at 236. What percent of the regular price was the sale price?
skad [1K]

Answer:

80%

Step-by-step explanation:

regular price was given as $295.

The sale of the camera was $236.

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Gnoma [55]

Answer:

The surface of the prism is 84m²

Step-by-step explanation:

You have 4 figures here (two the same triangles)

you need to determine the surface of each and then sum it to one. This will be your final surface.

rectangles:

3*6= 18m²

5*6 = 30m²

4*6 = 24m²

triangles:

You need to determine the square of the triangles from the Heron's formula.

Heron's formula states that the area of a triangle whose sides have lengths a, b, and c is

S=\sqrt{s(s-a)(s-b(s-c)},

where s is the semi-perimeter of the triangle; that is,

s=\frac{a+b+c}{2}.

So the permimeter of the triangle is

2p=4+5+3 = 12m

p = 6m

S = \sqrt{p*(p-a)*(p-b)*(p-c)}  = \sqrt{6*(6-3)*(6-4)*(6-5)}  = \sqrt{6*3*2*1} =\sqrt{36} =6[m^{2} ]

So the surface of the prism is a total sum of all surfaces:

P = 18m²+30m²+ 24m²+2*6m² = 84m²

6 0
2 years ago
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