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2 years ago

The odds against a spinner showing an even number are 3:8. What is the probability of the spinner showing an even number?

1 answer:

6 0

Odds: yes/no
Probability: yes/total

3:8 represents odds of 'not even' which is the same as odds of an odd number being spun.
There are 3 odd numbers and 8 even numbers.
P(even) = 8/11

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6,666,666×666,666 /1+2+3+4+5+6+5+4+3+2+1 − 777,777×777,777/1+2+3+4+5+6+7+6+5+4+3+2+1

jeka57 [31]

Answer:

111111 $\times$ 1111110 is the simple expression.

Step-by-step explanation:

The expression to be solved:

$\dfrac{6,666,666\times666,666 }{1+2+3+4+5+6+5+4+3+2+1} - \dfrac{777,777\times777,777}{1+2+3+4+5+6+7+6+5+4+3+2+1}$

First of all, let us solve the first term:

$\dfrac{6,666,666\times666,666 }{1+2+3+4+5+6+5+4+3+2+1}\\\Rightarrow \dfrac{6666666\times666666 }{36}\\\Rightarrow \dfrac{6666666\times666666 }{6\times 6}\\\Rightarrow 1111111\times 111111$

Now, the right term:

$\dfrac{777777\times777777}{1+2+3+4+5+6+7+6+5+4+3+2+1}\\\Rightarrow \dfrac{777777\times777777}{49}\\\Rightarrow \dfrac{777777\times777777}{7 \times 7}\\\Rightarrow 111111 \times 111111$

So, the expression to be solved becomes:

$1111111\times 111111-111111\times 111111\\\Rightarrow 111111(1111111-1)\\\Rightarrow 111111\times 1111110$

3 0

3 years ago

Mark the number line to show 1/4. Label 0 and 1 on the number line

emmainna [20.7K]

0 -1/8 -1/4 -1/2 -1

5 0

2 years ago

Rabbits doubles every month. if you start with 2, how many will you have after 5 years

Illusion [34]

2.30584301E+18 rabbits will be around bc you have to double the number 60 times

6 0

3 years ago

First right answer gets brilliant. Can someone please help? It is due today!

nikitadnepr [17]

Answer:

Step-by-step explanation:

A, x=31

E, b=11

N, m=61

Y, b=15

I, a=80

G, k=-78

U, x=-13

R, u=88

O, y=13

A, w=104

H, d=-7

V, n=1/36

Sorry, don't want to give away all the answers!

Hope this helps!!!

7 0

3 years ago

Which of the following is a true polynomial identity

zhuklara [117]

Answer:

It's a.

Step-by-step explanation:

(a - 2b)^2 + 8ab

= a^2 - 4ab + 4b^2 + 8ab

= a^2 + 4ab + 4b^2.

((a + 2b)^2 = a^2 + 4ab + 4b^2.

6 0

3 years ago

Read 2 more answers