Keylei’s family recipe for sugar cookies requires 1 1/2 cups of sugar for a batch of 30 cookies. Calculate the amount of sugar she needs for 1 cookie. Write an equation that represents the relationship between c cookies and s cups of sugar.

Answer:

Odd number: 13/25 (52%)

Multiples of 5: 5/25 (20%)

Step-by-step explanation:

There are 13 odd numbers between 1 and 25 so you have a 13/25 chance which is 52% (13/25 = 0.52). There are 5 multiples of 2 between 1 and 25 so you have a 5/25 chance which is 20% (5/25 = 0.2).

The probability of selecting an odd number or multiples of 5 is 3/5

"It is finding out the possibilities of the occurrence of an event."

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

where, n(A) is the number of favorable outcomes of an event A

n(S) is the total number of outcomes for an experiment"

For given question,

A number is chosen at random from 1 to 25.

n(S) = 25

Let event A: selecting odd number

⇒ A = {1 , 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25}

⇒ n(A) = 13

So, the probability of selecting odd number would be,

⇒ P(A) = n(A)/n(S)

⇒ P(A) = 13/25

Let event B: selecting a number which is multiple of 5

⇒ B ={5, 10, 15, 20, 25}

⇒ n(B) = 5

So, the probability of selecting a number which is multiple of 5 would be,

⇒ P(B) = n(B)/n(S)

⇒ P(B) = 5/25

Let (A ∩ B) represents the odd numbers which are multiple of 5

⇒  (A ∩ B) = {5, 15, 25}

⇒ n(A ∩ B) = 3

So, the probability of selecting odd numbers which are multiple of 5 would be,

⇒ P(A ∩ B) = n(A ∩ B)/n(S)

⇒ P(A ∩ B) = 3/25

So, the probability of selecting an odd number or multiples of 5 is,

⇒ P(A ∪ B) = P(A) + P(B) - P(A ∩ B)

⇒ P(A ∪ B) = 13/25 + 5/25 - 3/25

⇒ P(A ∪ B) = 15/25

⇒ P(A ∪ B) = 3/5

Therefore, the probability of selecting an odd number or multiples of 5 is 3/5

Learn more about the probability here:

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Answer: Choice B) The plane is at least 20 times faster than the bird

========================================================

Explanation:

We'll divide the speed of the plane over the speed of the bird.

First divide each coefficient of the scientific value expressions:

7/3 = 2.33 approximately

Then divide the 10^n exponent expressions and we get

10^3 divide by 10^2 = 10^(3-2) = 10^1

So overall, the result of dividing the two speeds leads to approximately

2.33*10^1 = 2.33*10 = 23.3

This shows the plane is approximately 23.3 times faster compared to the bird. Saying "The plane is at least 20 times faster than the bird" is fairly close to the prior sentence, so the statement is valid. That's why choice B is the answer.

Choices A and C are saying similarly valid statements, just written in different formats. I think choice B is the best answer since it seems to be the most direct comparison that is fairly easy to grasp.

Answer:

9x^2+42x+45

Step-by-step explanation:

Foil (3x+5)(3x+9) by taking the numbers in the left parenthesis and multiplying it by the numbers on the right. So 3x(3x), then 3x(9), then 5(3x) and 5(9). Now we have 9x^2 + 27x+15x+45, simplify to get 9x^2+42x+45.

[tex] \frac{2x}{5} + \frac{5}{8} = \frac{1}{4} [/tex]

[tex] \frac{2x}{5} = \frac{1}{4} - \frac{5}{8} [/tex]

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

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

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

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

[tex]2x = \frac{ - 15}{8} [/tex]

[tex]x = \frac{ - 15}{8} \div 2[/tex]

[tex] x = \frac{ - 15}{8} \times \frac{1}{2} [/tex]

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

Answer:

[tex]\frac{5}{6}[/tex]

Step-by-step explanation:

Given parameters

Percentage of all teachers the works in summer  = 85%

Number of teachers sampled  = 6 teachers

Unknown:

The probability that they all work in summer  = ?

Solution:

Now, to solve this problem, let us find the number of teachers that works in summer from the given size;

    Number of teachers = 85% x 6  = 5.1;

  Since it is not possible to have 5.1 people, the number of teachers will be 5

The probability  = [tex]\frac{5}{6}[/tex]

Answer:

The statement which could explain the effect of confounding is:

Because the weather was generally better this year compared to last year, the attendance may have increased.

Step-by-step explanation:

A confounding variable has some effect on the dependent variable.  Confounding variables are the variable(s) that are additional to the independent and dependent variables in an experiment.  Since the presence of confounding variables affect the variables being studied so that the results do not reflect the actual relationship, it is best to exclude or control them through randomization, restriction, and matching.

Answer:

D

Step-by-step explanation:

edge2o2o

Answer:

11x

Step-by-step explanation:

All 3 of the terms have the same base, meaning you just have to combine the terms together (1)x+4x+6x=11x <3

Answer:

75

Step-by-step explanation:

3 divide by 40= 0.0075

0.0075 times 1000= 75

Here I couldn't do this on Brainly but I made seperate pdf and did

Answer:

0.5 km

Step-by-step explanation:

0.5 kilometers is by far the largest measurement here.

Answer: 4.7 ft

Step-by-step explanation:

Since this is a diameter we are going to do the formula that uses the diameter to find the circumference.

C=3.14(d)

1.) Insert the numbers into the formula: C= 3.14*1.5

You’ll get 4.71 as your answer.

Next round to the nearest tenth and you’ll get 4.7.

Hope this helps!

Answer:

13.50

8.50

.50

.50

.50

+ .50

.50

.50

.50

.50

.50

.50

__________

13.50

it increased 5$

Answer:

-24.35, -7.96, 11.20

Step-by-step explanation:

Negative numbers are worth way less than positive numbers. In order to solve, the biggest looking negative number is worth less.

Positive is bigger

Negative is smaller

*EXTRA*

negative plus negative = positive

negative plus positive = negative

negative times negative = positive

negative times positive = negative

Hopefully you will understand!

Answer:

-72/3+51/2+83/2=89/4

Step-by-step explanation:

Answer:

look it up on tiger algerbra

Step-by-step explanation:

Answer:

3 TIMES 2 DONT EQUAL 7

Step-by-step explanation:

Step-by-step explanation:

Let breadth =x

Length=5x-3

As we know that in a rectangle

[tex]\boxed{\sf Area=lb}[/tex]

[tex]{:}\hookrightarrow\sf x (5x-3)=14 [/tex]

[tex]{:}\hookrightarrow\sf 5x^2-3x=14[/tex]

[tex]{:}\hookrightarrow\sf 5x^2-3x-14=0 [/tex]

[tex]{:}\hookrightarrow\sf 5x^2-10x+7x-14=0 [/tex]

[tex]{:}\hookrightarrow\sf 5x (x-2)+7 (x-2)=0[/tex]

[tex]{:}\hookrightarrow\sf (x-2)(5x+7)=0 [/tex]

[tex]{:}\hookrightarrow\sf x-2=0\quad or\quad 5x+7=0 [/tex]

[tex]{:}\hookrightarrow\sf x=2\:or\:x=\dfrac {-7}{5}[/tex]

[tex]{:}\hookrightarrow\sf Breadth =2cm[/tex]

[tex]{:}\hookrightarrow\sf Length=5 (2)-3=10-3=7cm[/tex]

Answer:

It's C

Step-by-step explanation:

Multiply the length by the width and you are going to do that by multiplying 4x by 2x and 4 and also multiply -6 by 2x and 4. and then you simplify and you should get the equation C

Answer:

the answer is c

Step-by-step explanation:

hope this helped

Answer:

c. -22(1) + -22(0.5)

Step-by-step explanation:

Answer:

The values of p = 0 < p ≤ 2/3

Step-by-step explanation:

First we write the probability of 6V flashlight working representing it as a binomial mass function of a binomial random variable

P ( 6v flashlight working  ) = P ( at least one 6V battery works )

                                           = P ( 1 6v battery work )  + P ( 2  6v battery work )

                                           = b( 2; 2, p ) + b( 1; 2, p )

write out a formula of  b( 2; 2, p ) + b( 1; 2, p )

P ( 6v flashlight working  )  = p^2 + 2p( 1 - p )

Next we write the probability of D flashlight working representing it as a binomial mass function of a binomial random variable

P ( D flashlight works ) = p ( at least two D batteries works )

                                     = b( 4; 4, p ) + b(3;4, p ) + b(2; 4, p )

write out a formula of  b( 4; 4, p ) + b(3;4, p ) + b(2; 4, p )

P ( D flashlight works ) = [tex]P^4 + 4p^3 ( 1- p ) + 6p^2 ( 1- p)^2[/tex]

attached below is the remaining solution

Answer:

Conver the sales tax to a decimal and ad it to 1, then multiple that total to the price of the item. Please mark as breinlest

Answer:

just multiply the tax percent to the cost of the product and move the decimal, or you can use a percent calculator

x would be 102° . hope it helps

Answer:

Ture

Step-by-step explanation:

Answer:

H0: the new commercial increases brand recognition

Step-by-step explanation:

The null hypothesis is a statement about the given population of interest which is believed to be true and a contradiction of the alternative hypothesis.

In this question, we are testi whether a new commercial increases brand recognition. So the null hypothesis,

H0 would be,

The new commercial increases brand recognition

Answer:

Step-by-step explanation:

Answer:

1,2,3,4

Step-by-step explanation:

Answer:

x=-7/2

Step-by-step explanation:

Answer:

x = -7/2 or -3.5

Step-by-step explanation:

7x - 2 = 9x + 5

Add 2 to both sides

7x = 9x + 7

Subtract 9x from both sides

-2x = 7

Divide both sides by -2

x = -7/2

x = -3.5

Answer:

Slope = -2

Step-by-step explanation:

Since, slope = [tex]\frac{\text{Rise}}{\text{Run}}[/tex]

Rise = -(y-intercept)

Run = (x-intercept)

From the graph attached,

y - intercept = -(4) = -4

x - intercept = 2

Therefore, slope the line given in the graph attached will be,

Slope = [tex]\frac{-4}{2}[/tex] = -2

Slope = -2

Answer:

7/1

Step-by-step explanation: