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oksano4ka [1.4K]
3 years ago
14

A bag contains 3 green marbles and 8 white marbles. Suppose a marble is randomly selected. What are the odds in favor of picking

a white marble?
Mathematics
2 answers:
Juli2301 [7.4K]3 years ago
5 0
8/11 or 72.7272727272%
KatRina [158]3 years ago
4 0
It would be 7 out of 11 because there are 8 marbles and you only took out one white marble

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Help math homework both questions
-Dominant- [34]

Answer:

Q-12 The vertical length of the top part of elevator to ground is 0.8484 meters .

Q -14 The glide runway path is 24,752.47 feet .

Step-by-step explanation:

Q - 12

Given as :

The diagonal length of the elevator = e = 1.2 meters

The vertical length of the top part of elevator to ground = x meters

The angle made by elevator with ground = Ф = 45°

<u>Now, According to figure</u>

Sin angle = \dfrac{\textrm perpendicular}{\textrm hypotenuse}

Or, Sin Ф = \dfrac{\textrm x}{\textrm e}

Or, Sin 45° =  \dfrac{\textrm x meters}{\textrm 1.2 meters}

Or, 0.707 × 1.2 meters = x

∴ x =  0.8484 meters

So, The vertical length of the top part of elevator to ground = x = 0.8484 meters

Hence,The vertical length of the top part of elevator to ground is 0.8484 meters .  Answer

Q-14

Given as:

The altitude of decent of plane = H = 10,000 feet

The angle of descend =  Ф = 22°

Let the glide runway path = y feet

<u>Now, According to question</u>

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

Or, Tan Ф = \dfrac{\textrm H}{\textrm y}

Or, Tan 22° =  \dfrac{\textrm  10,000 feet}{\textrm y feet}

Or, 0.4040 =  \dfrac{\textrm  10,000 feet}{\textrm y feet}

Or, y =  \dfrac{\textrm  10,000 feet}{\textrm 0.4040}

∴   y = 24,752.47

So,The glide runway path = y = 24,752.47 feet

Hence, The glide runway path is 24,752.47 feet . Answer

6 0
3 years ago
Solve: the sum of two numbers is 70. one number is 4 times the other. what are the two numbers?
Thepotemich [5.8K]
Lets say two numbers are x and y

x+y=70-----------------------eq1

x=4y--------------------eq2

4y+y=70
5y=70
y=70/5
y=14 

then x=4*14

x=56


8 0
3 years ago
What is U over 72=2 over 4
Mademuasel [1]
U/72 = 2/4

means u/72 = 0.5

therefore u = 72*0.5

which equals 36
8 0
4 years ago
Read 2 more answers
What number must you multiply both sides of 3/4a=24 by to get equivalent equation a=32??
Mamont248 [21]
4 because 4 times 24 equals 96 then 96 divided by 3 equals 32
3 0
3 years ago
Kate wants to buy a new bike from a sporting good store. The bike she wants normally sells for $360.00. The store has a sale whe
nasty-shy [4]
 Take $360.00 and multiply by .944 and that equals $339.84
7 0
3 years ago
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