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Dmitrij [34]
3 years ago
11

A bag contains 3 blue marbles, 7 red marbles, and 5 yellow marbles. If Joe picks 1 marble from the bag at random, what is the pr

obability that it will be blue?
Mathematics
2 answers:
fomenos3 years ago
3 0
You just add all the marbles which is 15 marbles. Then how many blue ones are there 3. So you just do blue out of the whole. So your answer is 3/15
nalin [4]3 years ago
3 0

Answer:  0.2

Step-by-step explanation:

Given : The number of blue marbles =3

The total number of marbles = 3+7+5=15

Now, If Joe picks 1 marble from the bag at random,  then the probability that it will be blue :-

\text{P(Blue)}=\dfrac{\text{Number of blue marbles}}{\text{Total marbles}}\\\\\=\dfrac{3}{15}=\dfrac{1}{5}=0.2

Hence, the probability that it will be blue  = 0.2

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URGENT kaser needs $155 to pay for a new mouth piece for her saxophone she has $35 already and save $15 a week that she earns wa
yulyashka [42]

Answer:

A) she needs to earn $120 for her mouth piece

B) it will taker kaser 8 weeks to get enough money for the mouthpiece

Step-by-step explanation:

whats a segment tool? no idea but i can help solve this so you can attempt that part

explaining

so kaser needs $155, she already has $35 and gains $15 a week. i will be assisting you with how to solve for how much she has when she starts saving and how long until she saves it all

process A

155-35 = 120

answer A

she needs to earn $120 for her mouth piece

process B

120 divided by 15 = 8

answer B

it will taker kaser 8 weeks to get enough money for the mouthpiece

8 0
3 years ago
The ratio of sam's age to Hank's age is 5 to 3.if the sum of their ages is 24, how old is Hank?
Grace [21]

Answer:

c is the answer if this question

5 0
3 years ago
Read 2 more answers
Hep I’m bout to fail if I don’t get this right will give brainless if correct
nalin [4]

Answer:

x = 4

ac = 56

Step-by-step explanation:

6x + 3 = 7x - 1

7x - 6x = 3+ 1

6x + 3  + 7x + 1 = 56

x = 4

3 0
2 years ago
Find the Value of x from the following :
Sonja [21]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

<h3>Question 1 ~</h3>

  • log_{x}(64)  = 2

  • {x}^{2}  = 64

  • x =  \sqrt{64}

  • x =  \sqrt{8 \times 8}

  • x = 8
<h3>Question 2 ~</h3>

  • log_{2}(x)  = 5

  • x = 2 {}^{5}

  • x = 32

I hope it helped ~

7 0
3 years ago
An ice cream shop sells cones at the volume of 94.2 cubic meters they want to double the volume of the cones without changing th
marin [14]
The volume of a cone is V=\pi r^2\frac{h}3 where r = radius and h = height. If the cone has a volume of 94.2 cm³ (I assume you didn't mean m³ because that would be ridiculously huge) and a height of 10 cm, we can plug these values into the formula to find the radius. Don't do any rounding.

94.2 = \pi r^2\frac{10}3 \\ 282.6 = \pi r^2 *10 \\ 28.26 = \pi r^2 \\ 8.99543738355 = r^2 \\ 2.99923946752=r

Now we know that's going to be the radius of our <em>new </em>cone as well since we're keeping the diameter the same. The volume is going to be double 94.2 which is 188.4. Let's solve for the height.

188.4 = \pi (2.99923946752)^2\frac{h}3 \\ 188.4 = \pi(8.99543738355)\frac{h}3 \\ 188.4 = 28.26\frac{h}3 \\ 565.2 = 28.26h \\\\ \boxed{h = 20, r\approx 3}
5 0
3 years ago
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