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lidiya [134]
3 years ago
6

A bag contains 5 black, 3 green, 3 blue, and 4 yellow marbles. A marble is randomly drawn. Find P(not black). 4/15 1/5 1/3 2/3

Mathematics
1 answer:
QveST [7]3 years ago
6 0

Answer:

2/3

Step-by-step explanation:

5 black

3 green (not black)

3 blue (not black)

4 yellow (not black)

there are 5 black and 10 not black out of a total of 15 marbles.

there are 10/15 that are not black.  Reduced 2/3.

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A 5'6" person walking down the street notices his shadow. If the angle of elevation from the tip of the shadow to the sun is 60°
madreJ [45]

Answer:

The length of the shadow is 3.17 feet .

Step-by-step explanation:

Given as :

The height of the person walking on street = H = 5'6''

∴ 12" = 1 '

So, 6" = \dfrac{1}{12} × 6 = 0.5'

I.e H = 5.5 feet

The angle of elevation of from tip of shadow to sun = Ф = 60°

Let The length of the shadow = X feet

<u>Now, From figure</u>'

Tan angle = \dfrac{\textrm perpendicular}{\textrm base}

Or, Tan Ф = \dfrac{\textrm AB}{\textrm AO}

Or, Tan 60° =  \dfrac{\textrm H}{\textrm X}

Or, Tan 60° =  \dfrac{\textrm 5.5 feet}{\textrm X}

Or, 1.732 = \dfrac{\textrm 5.5 feet}{\textrm X}

Or, X = \dfrac{\textrm 5.5 feet}{\textrm 1.732}

∴    X = 3.17 feet

So, The length of the shadow = X = 3.17 feet

Hence, The length of the shadow is 3.17 feet . Answer

3 0
4 years ago
What is three eights divided by 24
Arturiano [62]

The answer is 1/64 because you do 3/8 ÷ 24/1 then you

flip and  it will be 3/8 ÷ 1/24 you can cross cancel

24 go's into three 8 times so the answer is 1/64s.

Hope I helped!

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7 0
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The basketball game had 500 people in attendance. If the ratio of hawk fans to cyclone fans is 2:10, how many more cyclone fans
vovangra [49]
There were 5 times the number of hawk fans :)
4 0
3 years ago
Which equation accurately represents this statement? Select three options.
atroni [7]

Complete question:

Which equation accurately represents this statement? Check all that apply.

Negative 3 less than 4.9 times a number, x, is the same as 12.8

A: -3-4.9x=12.8

B: 4.9x-(-3)=12.8

C: 3+4.9x=12.8

D: (4.9-3)x=12.8

E:  12.8=4.9x+3

Answer:

B: 4.9x-(-3)=12.8

C: 3+4.9x=12.8

E:  12.8=4.9x+3

Step-by-step explanation:

The word equation can be expressed mathematically as follows

negative 3  → -3

less than 4.9 times a number , x →  4.9 x - (-3)

is same as 12.8  → 4.9 x - (-3) = 12.8

The equation can be expressed as

4.9 x - (-3) = 12.8

when you open the bracket, you multiply  -3 time  - 1 . MInus times minus is equals to plus. so you get

4.9 x + 3 = 12.8

12.8 = 4.9x+3

3 0
4 years ago
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Ilya [14]

Answer:

y=2x+5

Step-by-step explanation:

4 0
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