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Anuta_ua [19.1K]
3 years ago
15

Tina has 4 black marbles, 6 red marbles, 3 blue marbles, 7 green marbles, and 5 yellow marbles. She places all of the marbles in

a bag and randomly selects one. Find the theoretical probability that Tina will randomly select a yellow marble. Express this in the form of a fraction in the simplest form.
Mathematics
2 answers:
joja [24]3 years ago
4 0
It's a 5 in a 25th chance she'll choose yellow
AVprozaik [17]3 years ago
4 0
7/25 you add all and put 7

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Consider this equation: –3x – 5 2x = 6which is an equivalent equation after combining like terms?
Alla [95]
-3x-5+2x=6
2x-3x-5=6
-1x-5=6
-x-5=6
-x=11
x=11
an equivilent equaiton is x=11
7 0
3 years ago
Please help The perimeter of a rectangular shape electronic keyboard is 14 ft. Its width is 3 ft longer than its depth
kipiarov [429]

Answer:

Width = 6ft Area = 54 sq ft

Step-by-step explanation:

First, re-read the problem until you understand it and can put it into your own words.  I re-wrote it like this:  "Find the area of a rectangle by first finding the length (L) and the width (W)."   [note that I added "find L and W," but that is how I'm going to solve the problem;  I could also have said that we will need the formulas, P=2L+2W and A=LW, but you knew that already, right?).

 

Translate the problem:

 "The length of a rectangle is 3 ft longer than its width"      means

         L                             =    3             +         W                 (eq1)

 "the perimeter of the rectangle is 30 ft"     means

            P                                = 30                      (eq2)

 

So, now the math is easy, just find L and W so we can compute the area:

     P = 30 = 2L + 2W                         (eq3; from eq2 and the formula for P)

          30 = 2(3+W)  +  2W              (use eq1 to substitute for L)

          30 = 6 + 2W   + 2W              (distribute)

           30 = 6 + 4W                       (collect terms)

            24 = 4W                        (subtract 6 from both sides)

            6 ft = W                         (divide both sides by 4)

 

Use the easiest equation (either eq1 or else eq3) to find L:

          L = 3 + W        (eq1)

          L = 3 + 6

          L = 9 ft

What is the area (A)?

          A = L*W

          A = (9 ft)*(6 ft)

          A = 54 sq ft

3 0
3 years ago
Use the graphing method to solve the equation 5(1/2)^x=30 Round to the nearest thousandth
Daniel [21]

Answer:

x = -2.585

Step-by-step explanation:

You will have to plug this into your graphing calculator.

In y=, type 5(1/2)^x in the Y1 and type 30 in Y2.

When you hit 2nd trace and hit find intersections, you will get (-2.585, 30).

The answer is x = -2.585

5 0
3 years ago
Three brothers share 2 sandwiches equally how much of a sandwich does each brother get?
Valentin [98]
<span><u><em>Answer:</em></u>
Each brother gets </span>\frac{2}{3}<span> of a sandwich

<u><em>Explanation:</em></u>
We know that the total number of sandwiches is 2 and that the number of brothers is 3.

Since we are given that the sandwiches will be divided equally among the three brothers, this means that each will get an equal share.

Therefore, to get the share of each, we will simply <u>divide the number of sandwiches by the number of brother</u>s as follows:
each one will get = </span>\frac{# sandwiches}{# brothers} = \frac{2}{3}<span> of a sandwich

Hope this helps :)</span>
8 0
3 years ago
Read 2 more answers
Hello I need help I will name brainliest please help me
Sati [7]

Answer:

Only two options are CORRECT!

L is the midpoint of a segment in the diagram.

and option (a)

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.

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.

{\bold{\red{HOPE\:IT\:HELPS!}}}

\color{yellow}\boxed{\colorbox{black}{MARK\: BRAINLIEST!❤}}

6 0
2 years ago
Read 2 more answers
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