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elena-s [515]
3 years ago
15

There is a bag full of red, yellow, and green marbles. There are 3 red, 2 yellow, and 7 green. What is the probability of gettin

g a yellow? (fraction and percentage pls)
Mathematics
1 answer:
statuscvo [17]3 years ago
8 0

Answer:

1/6 and 16.67

Step-by-step explanation:

Add all the marbles, you get 12.

There's 2 out of 12 yellow marbles so you get 2/12

2/12 simplified to 1/6

So 1/6 is the probability as a fraction

Now to get the percentage just divide 100 by 6.

100/6 equals 16.67

Since it's 1/6 we multiply that by one

16.67 times 1 equals 16.67

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If two objects travel through space along two different curves, it’s often important to know whether they will collide. (Will a
galina1969 [7]

Answer:

<em>Both objects collide at t=3 in the point  <9,9,9></em>

Step-by-step explanation:

<em>Collision Of Moving Objects </em>

Two objects can describe different trajectories in the space. Those trajectories can intersect in one or more points but it doesn't mean they collide. Collision occurs if they are in the same position at the same time. If we know the positions as a function of time of each object, we could try so find if, for a given time, they are in the same position.

The positions of two object are given as

r1(t)=

r2(t)=

Let's find out if there is at least one value of t that makes both positions to be the same. We can try by equating one of the three coordinates and testing if the value of t make both have the same x,y,z coordinate. Let's try equating the x-components of both

t^2=4t-3

Rearranging

t^2-4t+3=0

Factoring

(t-1)(t-3)=0

We found two solutions

t=1,\ t=3

for t=1 the x-coordinates are

x1=t^2=1

x2=4t-3=1

For t=3

x1=t^2=9

x2=4t-3=9

Now we'll test both values in the y-coordinates

y1=7t-12

y2=t^2

For t=1

y1=-5

y2=1

Thus they don't collide at t=1. Let's try t=3

y1=7(3)-12=9

y2=3^2=9

Now let's try the z-coordinate for t=3

z1=t^2=9

z2=5t-6=9

Since the three coordinates match, we can say both objects collide at t=3 in the point  <9,9,9>

6 0
3 years ago
Solve by substitution.<br> y = 2.3 - 11<br> -2 + y = -4<br> Solution:
olga2289 [7]

Answer:

-2 + 2.3 - 11 = -4

Step-by-step explanation:

yall need to learn more in class

3 0
2 years ago
Let D={6,9,11}, E={6,8,9,10} and F={5,7,8,9,11} <br> List the elements in the set D U E.
Jet001 [13]

Answer:

D U E = { 6,8,9,10,11}

Step-by-step explanation:

U stands for union, which is join the sets together

D U E = { 6,8,9,10,11}

3 0
3 years ago
A grocery store displays cans of soup in rows, with one can on the top row, as shown below. A larger display uses the same patte
g100num [7]

Answer: 22+23+24+25

A for edg

Step-by-step explanation:

Just took the quiz

6 0
3 years ago
if 100 aluminum cans weigh 4 pounds and recycling center is paying 25 cents a pound how much will robert be payed for his 330 ca
faust18 [17]
330 x 4 / 100 = 13.2 lbs

<span>4 lbs ------0.25
13.2 lbs ......?

13.2 x 0.25 / 4 = 0.825 = 0.83

answer

83 cents

</span>
7 0
3 years ago
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