pls help me out ill give 40 points

Answer:

6.5:7.5, or 1.3:1.5

Step-by-step explanation:

Simply find the number of hours studied for math (6.5) and hours studied for English (7.5) and put it into ratio form (6.5:7.5). Then simplify to get 1.3:1.5. Watch out for the wording.

Answer:

1.3 : 1.5

Step-by-step explanation:

Math : English

6.5 : 7.5 = 1.3 : 1.5

Answer:

30

Step-by-step explanation:

Just took the test

Answer: 12

Step-by-step explanation:

C=12 because u do 91+53 =144 then 144/12=12

C=12

Answer:

2040ml

Step-by-step explanation:

Answer:

2,040

Step-by-step explanation:

1 cop =340

multiply 340 six times

the answer will be  2,040

Answer: $34

Step-by-step explanation:

39 x 0.2 = 7.80, the discount

39 - 7.80 = 31.20

31.20 x 0.09 = 2.80, the tax

31.20 + 2.80 = 34

Total cost for the shoes: $34

Answer:

24.99 dollars

Step-by-step explanation:

24 is 20 percent of 39

Answer: 8x

Answer: 12x - 3y

hope it helps.

Solution :

Let the number of the shots that the player while playing misses until the first success = x

The random variable X can take the values {0, 1, 2, 3, 4}

[tex]$P(x=0)$[/tex] = probability of the player that does not misses the 1st shot

The probability of the player that he success at the 1st shot = [tex]$\frac{1}{3}$[/tex]

[tex]$P(x=1)$[/tex] = probability of the player that misses the 1st shot but succeeds in his 2nd shot [tex]$=\frac{2}{3} \times \frac{1}{4}$[/tex]

               [tex]$=\frac{1}{6}$[/tex]

[tex]$P(x=2)$[/tex] = probability of the player that misses the 1st two shot but succeeds in the 3rd shot [tex]$=\frac{2}{3} \times \frac{3}{4}\times \frac{1}{5}$[/tex]

                                          [tex]$=\frac{1}{10}$[/tex]

[tex]$P(x=3)$[/tex] = probability of the player that misses the 1st three shot but succeeds in the 4th shot  [tex]$=\frac{2}{3} \times \frac{3}{4}\times \frac{4}{5} \times \frac{1}{6}$[/tex]

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

Similarly,

[tex]$P(x)$[/tex] = (probability of missing the 1st four shots) x (probability of removing te player after the 1st four shots missed)

[tex]$=\frac{2}{3} \times \frac{3}{4}\times \frac{4}{5} \times \frac{5}{6} \times 1$[/tex]

[tex]$=\frac{1}{3}$[/tex]

a). The p.m.f of the X

X = x            0           1               2               3                 4

P(X=x)        [tex]$\frac{1}{3}$[/tex]             [tex]$\frac{1}{6}$[/tex]               [tex]$\frac{1}{10}$[/tex]             [tex]$\frac{1}{15}$[/tex]                [tex]$\frac{1}{3}$[/tex]          

b). [tex]$E(X) = \sum x \times P(X=x)$[/tex]

              [tex]$= 0\times \frac{1}{3}+1\times \frac{1}{16}+2\times \frac{1}{10}+3\times \frac{1}{15}+4\times \frac{1}{3}$[/tex]

             [tex]$=\frac{114}{60}$[/tex]

            = 1.9

Answer:

9

Step-by-step explanation:

8+4=12

12-3=9

Answer:

9

Step-by-step explanation:

8+4=12

12-3=9

=9

Hi there!

[tex]\large\boxed{=7.5}}[/tex]

10 - 5c =

Solve by substituting in 0.5 for c:

10 - 5(0.5) =

Evaluate 5 · 0.5:

10 - 2.5 =

Solve:

10 - 2.5 = 7.5

Answer:

.

Step-by-step explanation:

Answer:

Peter is writing about characters in Wonder by R. J. Palacio.But somehow Jack Will got that I had smiled at him. And he smiled back. Homework: A Necessary Evil Some people say homework is the most important teaching tool.

At the beginning of the Occupation, the Nazis basically let the Jews go about their business. This all changes in October 1940. Measures are introduced one after the other. Civil servants must sign an official declaration stating whether they are Jewish or not. Just like in Germany earlier on, Jewish civil servants and teachers are fired from their jobs. At the beginning of 1941, all Jews in the Netherlands must register.

Step-by-step explanation:

Answer:

Step-by-step explanation:

First the gram will use the chemical explanation then you will put 1h gram the atomic mass .Then add 6 x 1023

Done done

The statement fourth "The population is all text messages she sent and the sample is the 50 text messages she randomly selected" is correct.

Simple random sampling is a sampling strategy in which every item in the population has an equal probability of being chosen for the sample.

We have:

A student would like to know what proportion of the text messages she sends is to her best friend.

The number of sample methods she selects =  50 text messages

As the sample consists of the 50 texts she randomly chose from the population of all the texts she sent.

Thus, the statement fourth "The population is all text messages she sent and the sample is the 50 text messages she randomly selected" is correct.

Learn more about the simple random sampling here:

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(a). Elena donates 12% of her income.

(b). d (amount donated) will be a better choice for the dependent variable, as it is always dependent on the income of Elena.

You can control or set the independent variable. It affects the dependent variable, which changes as a result. The input is unrelated to the result, which is the dependent variable.

As per the given data:

money donated from money earned is given in the table.

For percent of her income donated to charity:

Total money donated / Total money earned

= (4.44 + 1.80 + 3.12 + 3.60 + 2.16) / (37 + 15 + 26 + 30 + 18)

= (15.12)/(126)

= 0.12

∴ Elena donates 12% of her income.

Hence, Elena donates 12% of her income and d (amount donated) will be a better choice for the dependent variable as it is always dependent on the income of Elena.

To learn more on dependent variable, click:

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Answer:

D fluid ounce, cup, pint, quart, gallon

Step-by-step explanation:

Units from greater to smaller:

1 gallon = 4 quarts

1 quart = 2 pints

1 pint = 2 cups

1 cup = 8 fluid ounces

Answer: D fluid ounce, cup, pint, quart, gallon

fluid Ounce, cup, pint, quart, gallon

D is the answer

Answer:

C

Step-by-step explanation:

4 boxes: $3.79 is  $0.9475 or $0.95

a. 6 boxes: $5.79 is $0.95833333333 or $0.96

b. 2 boxes: $1.96 is 0.98

c. 3 boxes: $2.79 is $0.93

d. 1  box: $0.97 os $0.97

0.98 > 0.97 > 0.96 > 0.95 > 0.93

Answer:

3rd answer choice: 3 for $2.79

Step-by-step explanation:

“You bought 4 boxes of facial tissues for $3.79.Which is a better buy than the one you bought?”

First, find the individual box cost for the given amount in the question. Divide the total cost ($3.79) with the amount of boxes (4) to get the individual amount:

$3.79/4 = ~0.9475, or $0.95

The first answer choice looks like 6 boxes for $5.75. Divide 6 from $5.75:

$5.75/6 = ~0.9583, or $0.96 (1 cent more)

The second answer choice looks like 2 boxes for $1.96. Divide 2 from $1.96:

$1.96/2 = 0.98, or $0.98 (3 cent more)

The third answer choice looks like 3 boxes for $2.79. Divide 3 from $2.79:

$2.79/3 = 0.93, or $0.93 (2 cents less).

The fourth answer choice looks like 1 for $0.97.

$0.97 (2 cents more)

~

In this case, the cheapest one by individual costs is the 3rd answer choice, as it is the cheapest by individual boxes.

Answer:

The correct answer is 8.5 square unit.

Hope it helps you

Answer:

Angle x is 38.

Step-by-step explanation:

If its congruent it means it is equal. Vertical angles are equal to each other.

The measure of x is 38°.

The angles that are in the same position on two parallel lines intersected by a transversal line on the parallel lines.

Corresponding angles are equal.

We have,

Vertical angles are congruent.

x° and 38° are vertical angles.

Now,

x° = 38°

Thus,

The value of x is 38°.

Learn more about corresponding angles here:

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Answer:

A C & D

Step-step explanation:

Answer:

Serena had $32 at the end.

Step-by-step explanation:

They both had x in the beginning.

Bryan donated $258, so now he has

x - 258

Serena donated $234, so now she has

x - 234

Serena now has 4 times as much money as Bryan.

x - 234 = 4(x - 258)

x - 234 = 4x - 1032

-3x = -798

x = 266

They both had $266.

$266 - $234 = $32

Answer: Serena had $32 at the end.

Answer:

1 / 13

Step-by-step explanation:

lets just say the number is 'x'

5/2 + 6x = 7/2 - 7x

6x + 7x = 7/2 - 5/2

13x = 2/2

13x = 1

x = 1/13

proving it

5/2 + 6 × 1/13 = 7/2 - 7 × 1/13

5/2 + 6/13 = 7/2 - 7/13, solving the fraction by finding the L.C.M will result in

77/26 = 77/26

Answer and Step-by-step explanation:

[tex]\frac{13}{20}[/tex], or 0.65 miles.

Convert both to common denominator, then add together.

They have a common denominator of 20.

[tex]\frac{1}{4}[/tex] × [tex]\frac{5}{5} = \frac{5}{20}[/tex]

[tex]\frac{2}{5}[/tex] × [tex]\frac{4}{4} = \frac{8}{20}[/tex]

[tex]\frac{5}{20} + \frac{8}{20} = \frac{13}{20}[/tex]

Answer:

I would walk [tex]\frac{13}{20}[/tex] or 0.65 miles.

Step-by-step explanation:

[tex]\frac{1}{4}[/tex] + [tex]\frac{2}{5}[/tex] = [tex]\frac{5}{20}[/tex] + [tex]\frac{8}{20}[/tex] = [tex]\frac{13}{20}[/tex] or 0.65

Answer:

86.4 seconds.

Step-by-step explanation:

Given that Jack and Jill are 432 meters apart, but are walking towards each other, and Joe walks at a pace of 2 meters per second, while Jill walks at a pace of 3 meters per second, to determine after how many seconds will they meet up, the following calculation must be performed:

432 / (3 + 2) = X

432/5 = X

86.4 = X

So, Jack and Jill will meet after 86.4 seconds.

Answer:

(2x+1)²= (2x+1)(2x+1)

Step-by-step explanation:

(2x)²+2×2x×1+1²=(2x+1)²

Answer:

4

Step-by-step explanation:

it dropped 4 from yesterday. if it was 4 yesterday than its 0 today so 4 is correct