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Nine cards have the letters A, B, C, or D as shown. One card is pulled randomly. Enter the probability of pulling a card with the letter A one the first pull.

Answer:

ABD = 140
DBC = 40

Step-by-step explanation:

What is shown is a supplementary angle. These types of angles equal 180 degrees.

So that means whatever angle measures is in the supplementary angle added together would equal 180.

The equation to solve this would be (15x - 4) + (5x - 8) = 180

First, I would combine like terms. The 15x and 5x can be combined together to make 20x and the -4 and -8 would be equal to -12.

The simplified equation is now 20x - 12 = 180.

Next, we need to get rid of the 12. So we add 12 to both sides.

(20x - 12) + 12 leaves 20x by itself

180 + 12 = 192

Our equation is now 20x = 192

Next, we have to make sure that the x is by itself. To do this, we have to divide each side by 20.

20x/20 leaves us with just x.

192/20 is 9.6

x is equal to 9.6

Finally, we plug in the variable's value back into the angle measures to find their value.

15(9.6) - 4 = 140

5(9.6) - 8 = 40

Therefore, ABD is 140 degrees and angle DBC is 40 degrees.

Checking our work:

To check if our work is right, we can add up the angle measures to see if it's equal to 180.

140 + 40 is 180, so we are correct.

I apologize if that was a lot to read, but I hope you understand!

Answer: I think it might be 3in

Step-by-step explanation: hope it helps

Answer:

61

Step-by-step explanation:

mean formula: sum of all terms/number of terms

sum of all terms: 366

    31

    55

+   68

    70 70 72

---------------------

TOTAL: 366

number of terms: 6

31, 55, 68, 70, 70, 72

366/6 = 61

Answer:

24

Step-by-step explanation:

In a stem-and-leaf plot, each leaf represents a number or piece of data.

Each the leaf will only show the last digit of the number, and the stem will have the rest.

Examples:

stem value of 1 with a leaf value of 2 = 12

a stem value of 3 with a leaf value of 0 = 30

So, this is your plot:

Stems| Leaves

 1      |   2  3  5

 2     |   8  8

 3     |   0

 4     |   2

Your data is 12, 13, 15, 28, 28, 30, 42.

Add up all these numbers and divide by the number of leaves.

Sum of data = 12 + 13 + 15 + 28 + 28 + 30 + 42 = 168

Number of leaves = 7

168 ÷ 7 = 24

The mean is the values in the stem-and-leaf plot is 24.

Answer:

4

Step-by-step explanation:

[tex] - \frac{2}{3} (1 \frac{3}{5} )[/tex]

the product in simplest form.

[tex] - \frac{2}{3} (1 \frac{3}{5} )[/tex]

[tex] = - \frac { 2}{3} \times \frac{8}{5} [/tex]

[tex] = \frac{ - 2 \times 8}{3 \times 5} [/tex]

[tex] = - \frac{16}{15} [/tex]

[tex] = - 1 \frac{1}{15} [/tex]

Answer:

C

Step-by-step explanation:

Their are 3 chances that it will happen. So it would be 3/36

Answer:

z=28

Step-by-step explanation:

6=1/4z-1

1) take the -1 over to the other side of the equation, so it becomes +1

2) 6+1=7, so your new equation is 7=1/4z

3) to get "z" on its own, you'll have to time the 7 by 4 which is 28

4) your equation is now 28=z and that is your answer.

You can check by inserting 28 instead of z into the equation and it gives you 6. E.G. 1.4 X 28 -1 =6

Answer:

The volume is 29 2/3 ft

Step-by-step explanation:

I added them together and got this answer. Please don't delete my answer, I am just trying to help.

Answer:

11

Step-by-step explanation:

Corresponding angles are equal so-

6x+1=10x-43

6x-10x=-43-1

-4x=-44

x=11

Hope it helps! :)

Step-by-step explanation:

4. 3x+7=37, 3x=37-7=30 x=30÷3=10

5. 31=7x-11, 7x=31+11=42 x=42÷7=6

6. 11k-84=92, 11k=92+84=176 k=176÷11=16

7. 4r+13=57, 4r=57-13=44 r=44÷4=11

8. z÷4+16=21, z÷4=21-16=5 z=5×4=20

9. 7=t÷6-3, t÷6=7+3=10 t=10×6=60

Answer:

Rs 104z

Step-by-step explanation:

[tex]\frac{1}{4}[/tex] litres cost Rs 4z

1litre cost Rs 4z×4 =16z

[tex]6\frac{1}{2}[/tex]⇒[tex]\frac{13}{2}[/tex]⇒6.5 litres cost Rs 16z×6.5 =Rs 104z

Answer:

5

Step-by-step explanation:

208/46 = 4.5 roughly

you need to carry them all so round up so 5

Answer:

skewed left

Step-by-step explanation:

A bimodal distribution is a distribution that has two peaks. Notice that if we drew a line down the center of this distribution, the left and right sides would still mirror each other. For these distributions, the mean and the median are equal.

Answer:

= 3 (3x + 5y)

Step-by-step explanation:

First find the GCF of 9 and 15 which would be 3. Then the GCF which is 3 is placed on the left of the parentheses. then you plug in the numbers. So 9x divided by 3 is 3x, and 15y divided by 3 is 5y.

               - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

[tex]\large\blue\textsf{\textbf{\underline{\underline{Question:-}}}}[/tex]

               Factor the expression 9x+15y using the GCF.

[tex]\large\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}[/tex]

First, let's find the GCF of this expression.

Expressions, like numbers, have GCF's, and we're asked to find it.

The factors of the first term, 9x, are:-

1, x, 3

The factors of the second term, 15y, are:-

1, y, 3, 5

Common factors:-

1, 3

Greatest common factor (GCF):-

3

So we divide both terms by 3:-

3(3x+5y)

            - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Answer:

1 11/15

Step-by-step explanation:

Answer:

130+8n

Step-by-step explanation:

We know that all four humidifiers cost $520 to buy at first. So, we divide that by four to get the cost of one humidifer. $130.

We know that it costs $32 a week to keep all four humidifiers maintained. So, we divide that by four to get the cost of keeping one humidifier maintained. $8 per week.

130+8n is the equation that represents the cost of buying and maintaining one humidifier.

Answer:

He needs to score a 19

Step-by-step explanation:

First, I found the mean of the three test scores. The mean was below 17 so I knew he needed a grade higher than the ones he already has. So I went up from 18. So my first equation was 15+18+16+19=68. then I divided by 4 which gives you a mean of 17. (Mean=average)

The type of model that best fits the data is [tex]15n=x[/tex]

In the pattern each of the population is being multiplied by 2

Or we can divide 240 divided by 2 and so on.

I sure hope this helps you

Answer:

No way...by the way this question has only 5 points... ://

Answer:

Step-by-step explanation:

so since it is $40 per month for 12 months we would have to multiply 40x12 and that would give you $480

Answer:

(6, 0) is correct.

remember

x goes across

y goes up/down

Answer:

(6,0)

Step-by-step explanation:

6 shows the x mark

0 shows the y mark

So, its (6,0) ^^!

~From Random Person  

Answer: There will be 16,777,216 bacteria by the end of the day.

Step-by-step explanation: This situation can be represented by a geometric sequence, in which the quotient of consecutive terms is always the same, called the common ratio.

The nth term of a geometric sequence is:

In which is the term at the initial moment and q is the common ratio.

-------------------

Initially, 1 bacteria, which means that

Double every hour, thus,

After n hours, the number of bacteria will be given by:

-------------------

By the end of the day, that is, 24 hours, the amount will be:

There will be 16,777,216 bacteria by the end of the day.

A similar question is given at brainly.com/question/23826475

Answer:

What is 45 x 45 x 65B? The answer to this question is,  [tex]131,625x^2B[/tex]

what is 45 dived by 45? The answer is [tex]1[/tex] (anything divided by the same number is 1)

What is acarology? Acarology is the study of mites and ticks.

Hi, you are a good and wonderful person! :)

Answer:

154

Step-by-step explanation:

bc z is striaght line = 180

so 180 -26 = 154

remember

y + 26 = z

Answer:

∠y = 154°

Step-by-step explanation:

- angle ∠z is a straight angle meaning it equals 180 180°

this is also known as...

supplementary angles (when two angles whose sum is 180°)

- one of the two angles are given:

angle 1: 26°

angle 2: ∠y °

26 + ∠y = 180 °

subtract 26 from both sides to get y alone

26 -26 + ∠y = 180 ° - 26

∠y = 154°

∠y is an obtuse which is confirmed by 154°