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skad [1K]
3 years ago
11

Please help :,,,,,,,,,|

Mathematics
2 answers:
Oxana [17]3 years ago
4 0

Answer:

which one can I answer for you

Shkiper50 [21]3 years ago
4 0

Answer:

which class are you on and which answer do you want me to solve

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A box contains 60 identical marbles where x of them are red while the rest are yellow. If a marble is drawn and the probability
steposvetlana [31]

Answer:

a. x is 55

b. 20 white marbles

Step-by-step explanation:

Question: A box contains 60 identical marbles where 'x' of them are red while the rest are white; (given that in the original question, the box only contains red and yellow marbles, the yellow can be replaced by white to explain the question idea)

a. The number of identical marbles in the box, n = 60

The number of red marbles = x

The number of white marbles = The rest of the marbles which are not red

The probability that a marble drawn is white, P(y) = 1/12

Let 'y' represent the number of white marbles

From probability theory, we have;

The number of white marbles, y = n × P(y) = 60 × 1/12 = 5

The number of red marbles, x = n - y = 60 - 5 = 55

x = 55

b. The number of white marbles that must be added to make the probability of choosing a white marble = 5/16 is given as follows;

Let Δy represent the number of white marbles added, therefore;

P(y) = (y + Δy)/(y + Δy + x)

∴ P(y) = (5 + Δy)/(5 + Δy + 55) = 5/16

5 × (60 + Δy) = 16 × (5 + Δy)

300 + 5·Δy = 80 + 16·Δy

16·Δy - 5·Δy = 300 - 80

11·Δy = 220

Δy = 220/11 = 20

The number of white marbles that must be added, Δy = 20 white marbles

3 0
3 years ago
Dade County Public Schools
deff fn [24]
Thirty-four thousandths
4 0
3 years ago
ANSWER ASAP What is the volume of this right triangular prism? A. 180 cubic centimeters B. 120 cubic centimeters C. 90 cubic cen
Bess [88]

Volume of the right triangular prism 90 cube cm.

Step-by-step explanation:

Given,

In the right triangular prism

Length (l) = 6 cm

Base (b) = 5 cm

Height (h) = 6 cm

To find the volume of the right triangular prism

Formula

Volume of the right triangular prism = \frac{1}{2}bhl

Now,

Volume of the right triangular prism = \frac{1}{2}×6×6×5 cube cm

= 90 cube cm

5 0
3 years ago
( Multiple choice) In the game of miniature golf, the ball bounces off the wall at the same angle it hit the wall. (This is the
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The answer is A because if you do the 40 dagree and a coodinate plane it forms a triangle.
6 0
3 years ago
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A number written in expanded form is written has the sum of each blank write 39,005 in expanded form
evablogger [386]
When expanding number, we should separate the numbers according to the places like the number 275 written in expanded form 200+70+5. So, in this question we must likely done like this. The number is 39,005 the sum that is written on expanded form is 30,000+9,000+5.
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