A bad contains 15 balls of which X is red. Write an expression for the probability that a ball drawn from the bad is red. When 5 more red balls are added to the bag, the probability becomes 3/4. Find the value of X.

Answer:

A: 55

B: 125

C: 55

Step-by-step explanation:

Answer:

A: [tex]55[/tex]°
B: [tex]125[/tex]°
C: [tex]55[/tex]°

Step-by-step explanation:

Geometry properties!

When we look at this photo we see that [tex]a[/tex] and [tex]b[/tex] are on a line, meaning that [tex]a+b=180[/tex].

But because we don't have enough info yet we can't solve for them.

So let's head over to [tex]c[/tex].

For [tex]c[/tex] we see that it is also on a line with a right angle, and 35 degrees. This means that:

[tex]c + 90 + 35 = 180[/tex]

If we solve for [tex]c[/tex], we get:

[tex]c=180-90-35= 55[/tex].

Now we see that [tex]a[/tex] makes a vertical angle with [tex]c[/tex], meaning that angle [tex]a[/tex] is equal to angle [tex]c[/tex].

So now we know what angle [tex]a[/tex] is: [tex]55[/tex]°

Now we can go back to [tex]a + b =180[/tex]

Since we know [tex]a =55\\\text{we can get}\\55+b=180\\b=180-55=125[/tex]

That's it!

Answer: 30° - 3d ≤ 20°

Step-by-step explanation:

Here the constant rate of decreasing the temperature = d degree,

Thus, the total decreasing in three days = 3d degree,

If the temperature on Monday = 30°

Then the temperature n Thursday =  30° - 3d

Since, The swimming pool is open when the high temperature is higher than 20°

⇒ 30° - 3d ≤ 20°

Which is the required inequality to determine the rate of temperature decrease in degrees Celsius per day, d, from Monday to Thursday.

Answer:

30-3d\le 20

Step-by-step explanation:

Answer:

2,379 & look below for remaining numbers

Step-by-step explanation:

The divisor 4 goes to the left of the whole box, because you are dividing all the numbers by 4.

So for the last box, 4 x 9 = 36

For the top of the 3rd box, it's 4 x ? = 280, so you do 280 divided by 4 = 70

For the 2nd box, 4 x 300 = 1200

For the 1st box, I did the problem of 9516 divided by 4 in long division form.  4 goes into 9 only 2 times & the 2 is in the thousands place.  So on top of the 1st box goes 2,000 & in the box goes 4 x 2,000 = 8,000.

Add 8,000 + 1,200 + 70 + 36 = 9,516

9,516 divided by 4 = 2,379

2,000 + 300 + 70 +  9 = 2,379

Answer:

B. It still might be random becuase you could still randomly pick people from those areas.  C. Yes, because you are still randomly selcting from the phone books and from 20 random cities. D. No, Your just chosing people random people from the eyglasses store which means your chosing the probabilty of the people who only where glasses.

Step-by-step explanation:

Answer:

50 50 chance

Step-by-step explanation: If there are 20 spins in total, 10 spins are even and 10 spins are odd.

Answer:

12π, option C is correct.

[tex]C = 2\pi r[/tex]

[tex]2\pi r = 2 * \pi * 6[/tex]

________________________________________________________

With the previous information, your answer is C.

________________________________________________________

We learned what a problem using radius-to-circumference looks like, and how to solve it using 3.14 for pi.

Questions related to the topic? Ask me in the comments box.

Answer:

15/7 or 2 1/7

Step-by-step explanation:

The position of E is:

2 1/7 (mixed number)

15/7 (improper fraction)

How did we get our answer?

Well, starting from the line after 2 to 3, we have 7 lines. So, we got 2 1/7

From mixed number to mixed fraction (view the attached image)

Hope this helps!

The position of point E on the number line is accurately represented by the mixed number 2 1/7 or the improper fraction 15/7.

The mixed number 2 1/7 can be interpreted as 2 whole units plus 1/7 of another unit. This places point E two whole units to the right of the origin, and an additional 1/7 of a unit further to the right.

Conversely, the improper fraction 15/7 is equivalent to 2 1/7 when simplified. This means that the point E lies at 15/7 on the number line. This fraction signifies 2 whole units and 1/7 of a unit, the same as the mixed number representation.

In conclusion, both representations—2 1/7 and 15/7—accurately indicate the position of point E on the number line. The point lies 2 whole units to the right and an additional 1/7 of a unit to the right of that position.

To know more about number line:

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Answer:

D

Step-by-step explanation:

Product is multiplication

and the quotient is divison.

Hope I helped

Answer:

Figure 4)  [tex]2a + b/4[/tex]

Step-by-step explanation:

**Brainliest would be appreciated**

Answer:

1/12 land would be used for each type of vegetable

Step-by-step explanation:

First, Joe has 1/4 of an acre of land and 3 different types of plants he wants to plant for equal distance within that area. To find out the land he will use for each type of vegetable you must divide 1/4 by 3

The simplest way to divide fractions is to use cross multiplication

1         1        1

_   x   _  =    _

4        3       12

Therefore 1/12 of an acre is the amount of land he will use for each type of vegetable.

To check this just multiply 1/12 by 3 giving you 3/12 which can be simplified back into 1/4

Answer:

x -3y = - 3

Step-by-step explanation:

Slope of line m = (0 -1 )/(-3 - 0) = 1/3

y - intercept b = 1

Equation of line in slope-intercept form is given as:

y = mx + b

Plugging m = 1/3 and b = 1 in the above equation, we find:

y = 1/3 x + 1

-> 3y = x + 3

-> x -3y = - 3

This is the required equation of line.

The answer is 989

Hope it helps :)

Hey there!

4^5 + 72/9 - 43

= 4 * 4 * 4 * 4 * 4 + 72/9 - 43

= 16 * 16 * 4 + 72/9 - 43

= 256 * 4 + 72/9 - 43

= 1,024 + 72/9 - 43

= 1,024 + 8 - 43

= 1,032 - 43

= 989

Therefore, your answer is: 989

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

yes

Step-by-step explanation:

i go to azva online school and did the test

Answer:

1. The greater range is the girls set.

2. The one with the greater median is the girls and the median is 110.

Step-by-step explanation:

The answers for the boys range from 60 to 120. This is a range of 60. For the girls, it is from 70 to 150, and that is a range of 80. The median(avg of middle points) of the boys is 90 and the median of the girls is 110(avg of 100 and 120).

Answer: D

Use the formula y = (m or slope)x + (b or y-intercept)

Slope = 2 up and 3 right = 2/3

y-intercept = 2

So, Y = (2/3)x + 2

Answer:

-2/3

Step-by-step explanation:

Since there are 3 units from 0 to -1 and the mark is on the 2nd one it's 2/3

formula: pi×2×r or pi×d

1. 9m×2×pi= 56.55m

2. 17ft× pi= 53.41 ft

3. 3yd×pi= 9.42 yd

4. 5cm× pi= 15.71cm

Answer:

35

Step-by-step explanation:

Steps

1.  5x + 105 = 8x because you distributed the 5

2. 105 = 3x because you subtract the 5x on both sides

3. 105/3 = x because you divide the 3 and 105/3 is 35

Answer:

x=80

Step-by-step explanation:

3x = 10(x-56)

Step 1: distributive property

3x = 10(x-56) ----> 3x = 10x - 560

Step 2: subtract 10x from both sides

3x - 10x = 10x - 560 - 10x ----> -7x = -560

Step 3: Divide both sides by -7

-7x/-7 = -560/-7 ----> x=80

done! :)

The solution of the linear equation 3x = 10 (x - 56) will be 80.

In other words, the collection of all feasible values for the parameters that satisfy the specified mathematical equation is the convenient storage of the bunch of equations.

The equation is given below.

3x = 10 (x - 56)

Simplify the equation, then we have

3x = 10 (x - 56)

3x = 10x - 560

7x = 560

x = 80

The solution of the linear equation 3x = 10 (x - 56) will be 80.

More about the solution of the equation link is given below.

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Answer: Given : points 4  , 1 ,25  , opposite of 3 ,  -1/2To Find : draw on Number Line Solution :Numbers with a negative sign are less than zeroRight of zero represented by ‘+’ sign and to the left of zero represented by ‘–’ sign.+ sign numbers can be denoted as simply numbers  On a number line the number increases as we move to the right and decreases as we move to the left.  1 : Draw a line and mark some points at equal distance on it as shown in the figure below  Mark a point as zero on it. Points to the right of zero are positive integers and are marked simply 1, 2, 3  and so on , while points to the left of zero are negative integers and are marked – 1, – 2, – 3 and so on 2.  Go 4 unit on right sides from Zero   to show  43.  Go 3 units on Left from zero to show opposite of 3 4.  Divide number line between 1 & 2 in 4 Equal parts and go 1 part right of 15.  Divide number line between  0 & -1  in 2 Equal parts and go 1 part left of 0

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

6.5 feet.

Step-by-step explanation: The question is asking for the radius of the triangle, and the formula for that is r = c / (2 * π). Plugging in 41 for c, and 3.14 for two, the answer rounds up to 6.5 or 6.53 feet.

Answer:

The first blank is a dilation, which essentially means to shrink down in size. The second blank is transformation, to move the shape in place. The shapes are similar, since they are the same shape, but at a different size

Step-by-step explanation:

HOPE THIS HELPS IF IT DOESN'T CAN U TELL ME!!!!! :P

Answer:

yes it is possible

Step-by-step explanation:

Answer:

Coordinates system is a method for plotting coordinates on a plane or flat surface.

The green is y and the pink is x.

Answer:

Coordinates system is a method for plotting coordinates on a plane or flat surface.

Step-by-step explanation:

The green is y and the pink is x. I hope I helped!!