All categories

3 years ago

What is the probability of rolling a 6-sided die and getting a 1 or a prime number?

Mathematics

2 answers:

elena55 [62]3 years ago

7 0

4/6 is the probability, is this what you needed?

pshichka [43]3 years ago

6 0

1,2,3,5=4
Total=6
4/6 or 2/3

You might be interested in

Use mathematical induction to prove that for each integer n > 4,5" > 2^2n+1 + 100.

Flura [38]

Answer:

The inequality that you have is $5^{n}>2^{2n+1}+100,\,n>4$ . You can use mathematical induction as follows:

Step-by-step explanation:

For $n=5$ we have:

$5^{5}=3125$

$2^{(2(5)+1)}+100=2148$

Hence, we have that $5^{5}>2^{(2(5)+1)}+100.$

Now suppose that the inequality holds for $n=k$ and let's proof that the same holds for $n=k+1$ . In fact,

$5^{k+1}=5^{k}\cdot 5>(2^{2k+1}+100)\cdot 5.$

Where the last inequality holds by the induction hypothesis.Then,

$5^{k+1}>(2^{2k+1}+100)\cdot (4+1)$

$5^{k+1}>2^{2k+1}\cdot 4+100\cdot 4+2^{2k+1}+100$

$5^{k+1}>2^{2k+3}+100\cdot 4$

$5^{k+1}>2^{2(k+1)+1}+100$

Then, the inequality is True whenever $n>4$ .

3 0

2 years ago

fatemeh bought 8 pencils for AED 3 each and 5 black pens for AED 6 each. How much did she pay in the cashier? with unit

slavikrds [6]

Answer:

AED 50$

Step-by-step explanation:

8 pencil * 3 +5 pens *6

6 0

2 years ago

There are 8 times as many females as males on the maths course at university. What fraction

Serga [27]

Answer:

8/9 of the course are males.

4 0

2 years ago

I'm awful at word problems someone please help

Lubov Fominskaja [6]

Your answer is B.

Flat fee is $250, so we cannot change this number.
585 - 250 = 335
335 (remaining cash) divided by 8 (price per student) = 41.875
Since we can't bring .8 of one student on the trip, we will round the number down to 41, because if we round up we will go over the budget of $585.

The maximum number of students a school can send is 41.

6 0

2 years ago

Read 2 more answers

Joe is 5 years older than Sydney. The sum of their ages is 45. What is Sydney’s age?

sweet-ann [11.9K]

Answer:

20 years old

Step-by-step explanation:

Joe = J

Sydney = S

J = 5 + S

J + S = 45

Substitute

5 + S + S = 45

Add

5 + 2S = 45

Subtract 5 from both sides of the equation

2S = 40

Divide both sides of the equation by 2

S = 20

Sydney is 20 years old

Hope this helps :)

8 0

2 years ago