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charle [14.2K]
3 years ago
9

Find the probability.

Mathematics
2 answers:
Georgia [21]3 years ago
7 0

Answer: 82%

Step-by-step explanation:

The probability of getting a not clear marble out of the bag is given by the following expression

P=\frac{not clear marbles}{all the possibilities}

The number of not clear marbles in this case, will be the sum of black and white one (15+12=27), and all the possibilities will be the sum of the black, white and clear ones (15+17+6=33). Therefore the probability will be

P=\frac{not clear marbles}{all the possibilities}=\frac{27}{33}=0.8181

In percentage and rounding to the closest number the probability will be 82%

vitfil [10]3 years ago
4 0

Answer:

82%

Step-by-step explanation:

how i did it was 12 + 15 + 6 is 33 and then 12 + 15 is 27 so it's 27 out of 33. then to find the percentage just divide 27 by 33 and multiply the answer by 100.

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Lizzie has 30 coins that total $4.80. All of her coins are dimes, D, and quarters, Q. Algebraically determine how many of each t
Gnom [1K]

Lizzie has 18 dimes and 12 quarters

<em><u>Solution:</u></em>

Let "d" be the number of dimes

Let "q" be the number of quarters

We know that,

value of 1 dime = $ 0.10

value of 1 quarter = $ 0.25

Given that LIzzie has 30 coins

number of dimes + number of quarters = 30

d + q = 30 ---- eqn 1

Also given that the coins total $ 4.80

number of dimes x  value of 1 dime + number of quarters x  value of 1 quarter = 4.80

d \times 0.10 + q \times 0.25 = 4.80

0.1d + 0.25q = 4.8 ------ eqn 2

Let us solve eqn 1 and eqn 2

From eqn 1,

d = 30 - q ---- eqn 3

Substitute eqn 3 in eqn 2

0.1(30 - q) + 0.25q = 4.8

3 - 0.1q + 0.25q = 4.8

0.15q = 1.8

<h3>q = 12</h3>

From eqn 3,

d = 30 - 12

<h3>d = 18</h3>

Thus she has 18 dimes and 12 quarters

6 0
3 years ago
How would you do this as a decimal number ?
Contact [7]

Answer:

-5.875

Step-by-step explanation:

5 0
3 years ago
ME AYUDAN?? ¨Carlos compró un automóvil nuevo por un valor de $39000. Cada año que pasa desde la compra el auto disminuye su val
MrRa [10]

Multiplica 30 por 1500

Luego resta el resultado de la multiplicación por 39000 y te da el resultado de nada

3 0
3 years ago
Write the simplified form of -64^1/3
GREYUIT [131]

Answer:

-4

Step-by-step explanation:

<em>Factor by the numbers from left to right.</em>

<em>64^\frac{1}{3}</em>

<em>64=4^3</em>

<em>(\frac{4}{3})^\frac{1}{3}=4^3^*^\frac{1}{3}=4</em>

<em>It changes to positive to negative.</em>

<em>-4</em>

<em>-4 is the correct answer.</em>

8 0
3 years ago
Pleaseeeeee helppppp!!!!!
Paul [167]
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3 years ago
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