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slava [35]
3 years ago
12

gavin and play a game with 20 numbered balls. The 20 balls are numbered from 1 to 20. Write down the probability that the score

is a multiple of 3.​
Mathematics
2 answers:
OLEGan [10]3 years ago
8 0

Answer:

\frac{3}{10}

Step-by-step explanation:

The multiplies of 3 from 1-20 are:

3, 6, 9, 12, 15, 18

Since there are 20-1+1=20 numbers from 1-20 inclusive, the probability that a ball is a multiple of 3 is \frac{6}{20}=\boxed{\frac{3}{10}}

Vladimir79 [104]3 years ago
7 0

Step-by-step explanation:

6/20

3/10 (simplified)

do you want the percentage?

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What is PA <br> Enter your answer in the box
SSSSS [86.1K]

Answer:

3

Step-by-step explanation:

P is the in-center

⇒PA=PE=PD because they are in-radius of the in-circle

We know that, tangent segments drawn from a point outside the circle are always equal in length

⇒DK=EK=7.2

In right triangle PKE,

using Pythagoras' Theorem : PK^{2}=PE^{2}+KE^{2}

⇒PE^{2}=PK^{2}-KE^{2}

⇒PE=\sqrt{PK^{2}-KE^{2} }

⇒PE^{2}=\sqrt{7.8^{2}-7.2^{2}} }

⇒PE=3

Therefore, PA=3

3 0
3 years ago
A car traveled 330 miles during a 5½ hour period. If the speed at which the car traveled can be represented in the equation d=rt
Alina [70]

Answer:

The car was travelling at a speed of 60 miles per hour.

Step-by-step explanation:

Given:

Distance traveled = 330 miles

Time Period = 5 \frac12\ hr

we need to find the speed of the car .

Solution:

Time Period = 5 \frac12\ hr

Now we can say that;

\frac12\ hr =0.5\ hr

So Time period = 5+0.5 =5.5\ hr

Now we know that;

Distance traveled (d) is equal to Speed (r) multiplied by Time Period (t).

framing in equation form we get;

d=rt\\\\330 =r\times 5.5

Dividing both side by 5.5 we get;

\frac{330}{5.5}=\frac{5.5r}{5.5}\\\\r = 60\ mi/hr

Hence The car was travelling at a speed of 60 miles per hour.

6 0
3 years ago
3(9-8x-4x)+8(3x+4)=11
Papessa [141]
3(9 - 8x - 4x) + 8(3x + 4) = 11

3(9 - 12x) + 8(3x + 4) = 11

27 - 36x + 24x + 32 = 11

59 - 12x = 11

-12x = 11 - 59 

-12x = -48

x = 4

hope this helps, God bless!
4 0
3 years ago
Find the volume of each sphere. Round to the nearest tenth.​
bazaltina [42]

Answer:

267946.7

Step-by-step explanation:

here's the formula

V=4 /3πr3

3 0
3 years ago
Read 2 more answers
Identify the Property 8x0=0
nikdorinn [45]
The property is times
5 0
3 years ago
Read 2 more answers
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