There are 20 cards labeled from 1 to 20 in a bag. A card is randomly selected from the bag.What is the probability of getting an even number or a 1?




9/20

11/20

1/2

3/5

Answers

Answer 1
Answer:

Answer:

option 2=11/20  is the answer.

Step-by-step explanation:

given that there are 20 cards numbers 1,2... 20.

A card is randomly drawn.

We have to find the probability of drawing either 1 or even card.

P(drawing even card) = no of even cards/total cards = 10/20= 0.5

P(drawing one) = no of 1's/total cards = 1/20 = 0.05

P(drawing both one and even card) = 0 (since impossible)

Hence P(drawing even or one) =0.5+0.05-0

=0.55

= 11/20

Hence option 2 is the answer.

Answer 2
Answer:

Answer : 11/20

There are 20 cards labeled from 1 to 20 in a bag. A card is randomly selected from the bag.

Total number of outcomes = 20

outcomes of an even number ={2,4,6,8,10,12,14,16,18,20}

So number of outcomes of even number = 10

outcomes of a 1 ={1}

So number of outcomes of a 1 = 1

Number of outcomes of even number and a 1 = 10+1 = 11

Probability ( any event) =number of favorable outcomes divide by total  number of outcomes

Probability (getting an even number or a 1) = (11)/(20)



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During track practice, Britney ran 2 miles and sprinted 3,200 feet. In total, how many feet did she travel during practice?

In a appropriate environment, guppies reproduce at an astounding rate. A population of reproducing guppies quadruples every month. How many Guppies will there be after 6 months if the beginning population is only 6 guppies?a)24,576
b)144
c)46,656
d)1,296

Please help! I don't understand!

Answers

Answer: a)24,576

Step-by-step explanation:

Given: A population of reproducing guppies quadruples every month.

The population of guppies in the beginning = 6

In First month, the population of guppies = 4*6=24

In Second month, the population of guppies =4*24=4*4*6=4^2\cdot6=96

Continue like this,

In 6 months, the population of guppies =4^6\cdot6=24576


6x4=24 guppies 1st month
24x4=96 guppies 2nd mo.
96x4=384 ,3rd mo.
384x4=1,536, 4th mo.
1,536x4=6,144, 5th mo.
6,144x4=24,575, 6th mo.
So, A.

Translate the product of a counting number and the next highest counting number into an open sentence.

Answers

so lets say you have a number, x

to get to the next counting number, you add one so
x+1 is the next counting number

product means the result of multiplying os

(x)(x+1)=
distribute [a(b+c)=(ab)+(ac)]
(x^2)+(1x)=x^2+x

Triangle ABC is similar to triangle QRS by the AA Similarity Postulate.Also, m∠A = 45° and m∠S = 75°.

What is m∠B?

_________ °

Answers

Answer:

Measure of ∠B is 60°    

Step-by-step explanation:

Given triangle ABC is similar to triangle QRS.

m∠A = 45° and m∠S = 75°

we have to find the measure of ∠B.

As triangles are similar then corresponding angles are congruent.

⇒ ∠A≅∠Q, ∠B≅∠R, ∠C≅∠S

hence, m∠C=m∠S=75°

By angle sum property

m∠A+m∠B+m∠C=180°

⇒ 45°+m∠B+75°=180°

⇒ m∠B+120°=180°

⇒ m∠B=60°

hence, measure of ∠B is 60°

Angle B is 60 degrees

Need help on this pls

Answers

Alright, lets get started.

As per the scale, (1)/(4) '' = 1 '

Means 0.25 '' = 1 ' (symbol '' denotes inches and ' denotes feet)

As per the drawing, the dimention of bedroom is 3(1)/(2) '' and 5(1)/(4) ''.

Means

3(1)/(2) '' = 3 + (1)/(2)  = 3 + 0.5 = 3.5''

converting into feet, we need to divide with 0.25.

Means the first dimension would be : (3.5)/(0.25)  = 14 '

Converting 5(1)/(4) into decimal : 5 + 0.25 = 5.25

Similarly, the second dimension in feet would be : (5.25)/(0.25) = 21 '

Hence the dimension of bedroom will be 14 ft by 21 ft : Option A : Answer

Hope it will help :)

Operation and simplify the answer fully. (9x)/(5)*(5)/(4x^(2)) Submit Answer

Answers

Answer:

To simplify the expression (9x/5) * (5/4x^2), we can cancel out common factors.

= (9x * 5) / (5 * 4x^2)

= (45x) / (20x^2)

= (9/4) * (x / x^2)

= (9/4) * (1 / x)

Therefore, the simplified expression is (9/4) * (1 / x) or (9 / 4x).

Step-by-step explanation:

Final answer:

To solve the given expression (9x)/(5)*(5)/(4x^(2), we multiply the numerators together and the denominators together. Simplifying further by canceling out common factors and dividing by x, the final simplified expression is 9/(4x).

Explanation:

To solve the given expression: (9x)/(5)*(5)/(4x^(2)), we multiply the numerators together and the denominators together.

This gives us: (9x * 5)/(5 * 4x^2).

Simplifying further, we can cancel out the common factors between the numerator and denominator, which in this case is the factor of 5.

This leaves us with: (9x)/(4x^2).

Now, we can simplify the expression by dividing both the numerator and denominator by x.

This leads to the final simplified expression: 9/(4x).

Learn more about simplifying expressions here:

brainly.com/question/29003427

#SPJ11

What formula tells the cost, in dollars, ifchocolate chip cookies are $1.50/dozen and
lemon frosteds are $ 1.00/dozen? Let c =
number of dozens of chocolate chip cookies; L=
number of dozens of lemon frosteds; T = total
charge.

Answers

Answer:

T = $1.50C + $1.00L

Step-by-step explanation:

Chocolate chip cookies - $1.50/dozen

C: # of dozens of chocolate chip cookies

$1.50C

Lemon Frosteds - $1.00/dozen

L: # of dozens of lemon frosteds

$1.00L

T(total) = $1.50C + $1.00L

Hope that helps.