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goldenfox [79]
3 years ago
7

A bag has 14 yellow Marbles and 6 red marbles half of the red marbles are made of plastic a marble is selected at random from th

e bag what is the probability that it is a red plastic marble
Mathematics
1 answer:
ivolga24 [154]3 years ago
6 0

Answer:

There is a 3/20 chance that a red plastic marble will be taken out on random.

Step-by-step explanation:

This is because there are 14 yellow marbles, and 6 red marbles. Along with this, half of the red marbles are made out of plastic. This leaves 3/6 of the red marbles made out of plastic. When combined with the yellow marbles, you'll add 14 to the denominator, since there are 14 yellow marbles. (Red + Yellow = Total Number Of Marbles) This leads to a total count of 3 marbles of the 20 total marbles, being red and made out of plastic.

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Answer:

C

Step-by-step explanation:

Take sides AD and MP.

6 in. in ADCB is 3/2 * 4 in. in MPON

7 0
2 years ago
Read 2 more answers
An electronics store sold 4% of computers that were on sale if only 12 computers were sold how many computers were not sold
Anarel [89]
I think it would be 300 computers
8 0
2 years ago
Please answer before Monday 9 a.m.I have to go to school that day at that time.
xeze [42]

Answer:

  • <u>First choice, 984 cm²</u>

Explanation:

The plastic pencil case has form of a triangular prism.

This triangular prism has five faces:

  • Top and bottom faces: two congruent triangles with a 10 cm base and 12 cm height.

  • Lateral faces: two congruent rectangles with a 24 cm length and 13 cm widht, and one rectangle with 24 cm length and 10 cm widht.

<u>Surface area:</u>

  • <u>Top and bottom triangles</u>:

        area = (1/2) base × height

         area of one triangle = 10 cm × 12 cm × (1/2) = 60 cm²

          area of the two triangles = 2 × 60 cm² = 120 cm²

  • <u>Lateral rectangles:</u>

        area of a rectangle = length × width

         area of the trhee triangles = 24 cm × 10 cm + 2 × 24 cm × 13 cm = 240 cm² + 624 cm² = 864 cm².

  • <u>Total area: </u>120 cm² + 864 cm² = 984 cm²

Answer: first choice, 984 cm²

6 0
3 years ago
4.5qt/min = ______ gal/h
Nuetrik [128]
4.5 quarts per minute is 1.125 gallons per minute using the quarts-to-gallons conversion ratio.  1.125 gallons per minute is equal to .01875 when divided by 60, so we have .01875 gallons per hour.
7 0
3 years ago
The exterior angle of a regular polygon is 15 degrees how many sides does it have
Komok [63]
The formula to use is
n = 360/E
where 
n = number of sides
E = measure of exterior angle

In our case, E = 15 so 
n = 360/E
n = 360/15
n = 24

This regular polygon has 24 sides
6 0
3 years ago
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