A jar contains 30 red marbles, 50 blue marbles, and 20 white marbles. You choose one marble from the jar at random. What is the theoretical probability of choosing a red marble?

Answer:

38

Step-by-step explanation:

3 plus 5 is 7. 7 times 7 equals 49 minus 11 equals 38

Answer: (-3,-6)

Step-by-step explanation:

Answer:

(-3, -6)

Step-by-step explanation:

"x" goes first, and its -3 on the left

"y" goes last, and its -6 when it came down.

Answer: 9 and 8, greater than, less than

Step-by-step explanation: Got it right on TTM

Answer:

Step-by-step explanation:

Answer:

2294

Step-by-step explanation:

Answer:

2294

Step-by-step explanation:

Answer:

245

Step-by-step explanation:

This is a ratio

7/10 = 70% = the kids who picked summer which leaves off as 30% for an unknown season

    7 : 10

245 : 350

The 7 is how many students chose summer, and the 10 is the number of students there are in general

The 245 is the number of students who chose summer, and the 350 is the number of students there are in general

All we had to do was see how many times 10 goes into 350, which is 35 times. So we multiply 10 by 35 and we get 350. Now whatever we do on one side, we need to do it to the other. So 7 times 35 gives us 245. And that's how I know that out of the 350 students there are in total, 245 of them chose summer.

Hope this helped!

Have a supercalifragilisticexpialidocious day!

Answer:

Last year there were 550 bison in the heard and this year it is 10% larger.

10% is also 10/100 or 0.10

To find 10% of the heard last year

550 x.0.10 = 55. To find the number in the heard this year add 550 (last year) + 55 (10% growth) = 605 or,

to find how many there are now last years heard size was 100% of the heard or 1.00. To find any percent more add it to 1.00 and multiply by the starting amount.

550 x 1.10 = 605

For the second example.

If there are 550 bison in the heard this year, and this year was a decrease of 10% from last year we can express last year's number like this.

550 = (x - (x * 0.10)) simplify;

550 = 1x - 0.10x

550 = 0.90x

Divide both sides by 0.90

x = 611.11 but it's hard to have 0.11 of a bison so realistically 611 bison last year. Subtract 10% or 61 and you indeed have 550 this year.

Answer:

4.5 cups

Step-by-step explanation:

if one batch requires 3 cups of flour

3b= cups of flour

3x1.5= cups of flour

4.5 cups

Answer:

a. C = $ 10.50x b. 2 persons

Step-by-step explanation:

a. Write an equation to find how many people visited in a hour

Let x be the number of persons admitted in one hour. Since the movie theater charges 10.50 per person for admission, then the total admission fees would be C = charge per person × number of persons = $ 10.50 × x = $ 10.50x.

C = $ 10.50x

b. Solve an equation to find how many people visited in a hour

Given that C = $19.11, and C = $ 10.50x, so,

x = C/($10.50)

substituting C into the equation, we have

x = $19.11/$10.50

x = 1.82

Since we cannot have a decimal number of persons, x is rounded up to the nearest whole number. So,

x = 1.82

x ≅ 2

So, two people visited the theater in one hour.

Answer:

2

Step-by-step explanation:

5 1/2:2 3/4 reduces is a 2:1 ratio

Answer:

2.625 powder is needed.

Step-by-step explanation:

14/4= 3.5

3.5*.75= 2.625

Answer:

x=(1,0)

g=(3,0)

q=(1,-2)

u=(2,-4)

Step-by-step explanation:

Answer:

Brainiest

Step-by-step explanation:

2.01666666667

Answer:

2 1/60

Step-by-step explanation:

Answer:

-18 or 18, the value of w is not clear, it looks like it can be either 3 or -3

Step-by-step explanation:

So if you substitute the variables for there actual value the equation would be 6(-3) or 6(3)

A negative times a positive is a negative so -3 or 3 times 6 is -18 or 18

Answer:

140°

Step-by-step explanation:

Angles in a triangle add up to 180

we can see it's an isosceles triangle so the base angles are the same

The missing angle inside the triangle would be...

180 - (70 + 70) = 40°

Angles on a straight line add up to 180

so 180 - 40 = 140°

Answer:

24 yards of chain were sold

Step-by-step explanation:

1 ft = 1/3 yd

72 * 1/3 = 24

Answer:

12 groups

Step-by-step explanation:

According to the problem, calculation of the given data are as follows:

Given number = 3

Each group = 1/4 or 0.25

So, we can calculate the number of group in 3 by using following formula,

Number of groups = Given number ÷ Each group

By putting the value, we get

Number of groups = 3 ÷ 0.25

= 12

Hence, there are 12 groups of 1/4 in 3.

Answer:

Area of pool = 24x²-43x-56 square feet

Step-by-step explanation:

Given that:

Dimensions of rectangular swimming pool = 3x - 8 and 8x + 7

Area of the swimming pool can be calculated by multiplying the dimensions.

Area of pool = (3x-8)(8x+7)

Area of pool = 3x(8x+7)-8(8x+7)

Area of pool = 24x²+21x-64x-56

Area of pool = 24x²-43x-56

Hence,

Area of pool = 24x²-43x-56 square feet

Answer:

[tex]\mathrm{P(1)\:}=\frac{1}{5}[/tex]

Step-by-step explanation:

There are simply 5 possible values in the given set. Out of these, only one of these is the number 1. Therefore, the probability a 1 is drawn (P(1)) is [tex]\fbox{$\frac{1}{5}$}[/tex].

P(1) = 0.2

"Probability is a branch of mathematics which deals with finding out the likelihood of the occurrence of an event."

P(A) = n(A) / n(S)  

where, n(A) is the number of favorable outcomes and n(S) is the total number of events in the sample space.

For given question,

Number on dice = 1, 3, 3, 4, 4

⇒ S = {1, 3, 3, 4, 4}

total outcomes n(S) = 5

Let event A: getting 1 on dice

⇒ n(1) = 1

Using the formula of probability,

P(A) = n(A) / n(S)

⇒ P(A) = 1/5

⇒ P(A) = 0.2

Learn more about probability here:

brainly.com/question/12478394

#SPJ2

Answer: $76

Step-by-step explanation:

Stores buy goods from others and sell it at a higher price to make profit. The difference between the price they bought it for and the one they will sell is the markup.

The markup percentage represents that markup in terms of the original cost.

If the price now is 75% higher than the original price, assume the original price to be x.

Expression is:

x + (x * 75%) = 133

x + 0.75x = 133

1.75x = 133

x = 133/1.75

x = $76

Answer:

8

Step-by-step explanation:

2log(x)=log(64)

By logarithms properties

[tex]xlog_{a}(b)=log_{a}(b^{x} ) \\[/tex]

log(x²)=log(64)

When you have log or ln in both sites, you delete them and...

x²=64

[tex]\sqrt[]{x^{2} } =\sqrt{64} \\x=8[/tex]

i’m going to interpret this as (r+5)/3=-16. we multiple both sides by 3 to get (r+5)=48. now we subtract 5 from both sides to get r=43

Answer:

4.5>2.89

Step-by-step explanation:

This question is asking for the comparison between the values of both numbers. 4.5 is greater than 2.89, and this can be written as 4.5>2.89

Answer:

17.1 grams of sugar

Step-by-step explanation:

Just multiply them

Answer:

X=6 the answer is 6. The answer is 6

Step-by-step explanation:

6666666666666666

Answer:

Furic

Step-by-step explanation:

Answer: Orcas, Polar Bears, Humans, it complicated

Step-by-step explanation:

It's a hard question to answer because there is going to be all sorts of technicalities, like whales or sharks, and many other species in the ocean or in Antartica. But since humans are one of the smartest living things in the world, along with again more technicalities, it just is theoretical that humans are on the top of the food chain. Because we still are discovering new species and things all over the world.

Answer:

animals with no predetor such as humans, lions, tigers, cheetas, polar bears, eels, king cobras, and killer whales.