Diana can decorate 15 cookies in an hor; Jamie can decorate 15 cookies in two hours. How many hours would it take to decorate 60 cookies if they worked together?

Diana Can Decorate 15 Cookies In An Hor; Jamie Can Decorate 15 Cookies In Two Hours. How Many Hours Would

Answers

Answer 1

Answer:

2.67 hours

Step-by-step explanation:

Diana: 15 cookies per hour

Jamie: 7.5 cookies per hour

15 + 7.5 = 22.5

22.5 cookies per hour

[tex]\frac{60}{22.5} =\frac{y}{1}[/tex]

22.5 · y = 60 · 1

22.5y = 60

22.5y ÷ 22.5 = 60 ÷ 22.5

[tex]y=2\frac{2}{3}[/tex]

[tex]2\frac{2}{3}[/tex]  rounded to the nearest hundredth is 2.67


Related Questions

What is the slope of the line below? If necessary, enter your answer as a
fraction in lowest terms, using the slash ( 1 ) as the fraction bar. Do not enter
your answer as a decimal number or an equation.

Answers

WhT line tho is there more info

The slope of line shown in the graph is 1.

What is Slope?

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the

change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

We have two points from the graph as (8, 8) and (5, 5)

So, the slope of line

Slope = (5- 8)/ (5-8)

slope= (-3)/ (-3)

slope = 1

Also, rise 3 units and run 3 units

Then, slope= Rise/ Run

slope= 3/3

Slope= 1

This, the required slope is 1.

Learn more about Slope here:

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ON A RECENT MATH TEST MARY SCORED 14 OF 16 CORRECT. JOHN SCORED 23 OF 26AND JOE SCORED 9 OF 11 CORRECT. WHO ACHIEVED THE HIGHER SCORE?

Answers

Answer:

I think the answer is mary

Answer:

John

Step-by-step explanation:

Mary: 87%-88% (0.875)

John: 88% (0.884)

Joe: 81% (0.818)

Find the volume of the following cylinder in cubic inches

Answers

Answer:

Option (1)

Step-by-step explanation:

Volume of a cylinder is given by the formula,

V = πr²h

Here, V = Volume

r = Radius of the circular base

h = Height of the cylinder

From the picture attached,

r = 8 in.

h = 0.5 in.

By substituting these values in the formula,

V = π(8)²(0.5)

  = 32π

  = 32(3.14)

  = 100.48 in³

Therefore, Option (1) will be the correct option.

What is the answer to 4(10 + 9)

Answers

Answer:

76

Step-by-step explanation:

10+9= 19

19*4=76

Answer:

76

Step-by-step explanation:

1 Simplify  10+910+9  to  1919.

4\times 19

4×19

2 Simplify.

76

76

Find the x-intercept and y-intercept of the line −2x − 2y = −2. Use the intercepts to graph the equation.

Answers

Answer:

Step-by-step explanation:

The x-intercept is 1, the y-intercept is 1. Convert it to slope-intercept form, then plug in 0 for y to find the x-intercept.

please help with these questions (no links)

Answers

if the cakes are circles,
3.14(4)2= 50.24
3.14(5)2= 78.5
78.5-50.24= 28.26

#1 is 28.26

En una prueba de duración para determinar la vida útil de un nuevo tipo de lámpara lanzada al mercado, los datos de la muestra se distribuyeron de manera casi normal. Se calculó una vida útil
promedio de 7000 hrs. y una desviación de 520 hrs. Halla el porcentaje de lámparas que tendrán
una vida útil
a) entre la media y 7600hrs.
b)entre 6500 hrs y 7600 hrs.
c) mas de 7600

Answers

Answer:

no habla espenol :((

Step-by-step explanation:

The two circles shown above have radii of 8 in. and 2 in.

Answers

Answer:

1/4

Step-by-step explanation:

For the first circle 2 x 2in = 4 to find diameter

4 x 3.14 = 12.56

6in x 2 = 12

12 x 3.14 = 37.68

simplify

12.56/37.68

6.28/18.84

3.14/9.42

So the answer is 1/4 since 3.14 x 2 = 6.28

Also since the radius is 2 times longer

Answer:

D

Step-by-step explanation:

Circumference = 2 * pi * r

Circle A / Circle B = 2 * pi * 8 / 2 * pi * 2

You need to take note of the right side. The 2s cancel and so does pi

Circle A/ Circle B = 8/2

Circle A / Circle B = 4/1 = 4

Which is D

NEED ANSWER FAST PLEASE
!! Marty keiths annual salary is 56,000 as a computer- aided designer. If the state tax is 4% what does he pay yearly in state taxes?

Answers

Answer:

$3240.Step-by-step explanation:

there is no way to explain it on computer but hope this helps

$2,240

Convert the 4% to a decimal by dividing by 100 = 0.04

56,000 x 0.04 = 2,240

Keri pours 6 glasses of juice. Each glass holds 34 cup. How many cups of juice does Keri pour?

Answers

Answer:

3/4x6=4.5

Step-by-step explanation:

If Keri pours 6 glasses that each contain 3/4 cups than If she where to pour all of them than It would be 3/4*6 to represent the amount of cups to glasses and then the answer would be 4.5 C.

In all glasses combined their will be 4.5 cups of water!

Fractions are written as a ratio of two integers.  If Keri pours 6 glasses of juice, she must have poured 4.5 cups of juice

Ratio and proportions

Fractions are written as a ratio of two integers.


If Keri pours 6 glasses of juice and each glass contains 3/4 cup, hence the total cups of juice poured is expressed as:

Total cups of juice poured = 3/4 * 6

Total cups of juice poured = 4.5

Hence if Keri pours 6 glasses of juice, she must have poured 4.5 cups of juice

Learn more on ratio and proportion here: https://brainly.com/question/19994681

Which graph represents y=3sqrt x+6-3?

Answers

Answer:

graph for y=3sqrt x+6-3

Step-by-step explanation:

hope this helps :]

If you extend a rectangle along its 3rd
dimension, you form a
A.cylinder
B.cube
C.rectangular prism
D.triangular prism

Answers

Answer:

C. rectangular prism

Step-by-step explanation:

14. The measure of Fis 110. The measure of 2E is 100°
What is the measure of D?
150°

Answers

According to given angles ,

Angle C=180- angle F (Linear pairs or st.line )

=70

Angle B = 180 - angle B (Same as above)

=80

Now

Angle D =Angle C + Angle B (Exterior angle property of a triangle)

=150°

Enjoy

Write 0.00000000000000000000000000167 as a multiple of a power of 10.

Answers

Answer:

1.67x10^-27

hope this helps

have a good day :)

Step-by-step explanation:

According to the 2000 U.S. Census, 80% of Americans over the age of 25 have earned a high school diploma. Suppose we take a random sample of 120 Americans and record the proportion, p, of individuals in our sample that have a high school diploma.

Answers

Answer:

a) The mean is 0.8.

b) The standard deviation is 0.0365.

c) Normal

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

80% of Americans over the age of 25 have earned a high school diploma.

This means that [tex]p = 0.8[/tex]

Suppose we take a random sample of 120 Americans

This means that [tex]n = 120[/tex].

Question a:

The mean is:

[tex]\mu = p = 0.8[/tex]

The mean is 0.8.

Question b:

The standard deviation is:

[tex]s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.8*0.2}{120}} = 0.0365[/tex]

The standard deviation is 0.0365.

Question c:

By the Central Limit Theorem, approximately normal.

a) The mean is 0.8.

b) The standard deviation is 0.0365.

c) Normal

Here, we have,

we know that,

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean x and standard deviation σ, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean x and standard deviation s = σ/√n .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean x=p and standard deviation s=√p(1-p)/n

80% of Americans over the age of 25 have earned a high school diploma.

This means that p=0.8

Suppose we take a random sample of 120 Americans

This means that n=120.

Question a:

The mean is:

x=p=0.8

The mean is 0.8.

Question b:

The standard deviation is:

s=0.0365

The standard deviation is 0.0365.

Question c:

By the Central Limit Theorem, approximately normal.

Learn more about standard deviation here:

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backk from ban!!!!!!!!

Answers

Oookkkkkkkkkkkkkkkkkkkll

This is 4 questions so you can get 50 points......

Answers

Answer:

...........................................................................................................................................................................................i really dont know

Step-by-step explanation:

. Find the volume of a sphere with a radius of 23 feet. Round your answer to 2 decimal places. [Use pi = 3.14] *

Answers

Answer:

50.965.01

Step-by-step explanation:

In which quadrant would you find the point 4 and 8

Answers

Answer:

Quadrant 1

Step-by-step explanation:

Sara claims that the number of pages she has read in her book is proportional to the number of minutes that she has spent reading. She collects several data points to prove her claim and expresses the data points as (x, y) coordinate pairs.

Which of the following actions could Sara take to prove her claim? Select two that apply.

A. Place the coordinate pairs in a table and show that they create equivalent ratios.


B. Use the coordinate pairs to show that an equation of the form y = x + c can be written.


C. List out the coordinate pairs and show that each y–value is a multiple of its associated x–value.


D. Plot the coordinate pairs on a graph and show that the points make a straight line through the origin.

Answers

Answer:

B. Use the coordinate pairs to show that an equation of the form y = x + c can be written. C. List out the coordinate pairs and show that each y–value is a multiple of its associated x–value. D. Plot the coordinate pairs on a graph and show that the points make a straight line through the origin.

Step-by-step explanation:

Answer:

D. Plot the coordinate pairs on a graph and show that the points make a straight line through the origin.

hope it helps have a nice dayyy

Help me with this please!

Answers

The answer is the first one

The equation of a line is y = 8x + 2, and the point (3,q) lies on this line.
Determine the value of q

Answers

Answer:

q = 26

Step-by-step explanation:

Given the point (3, q ) lies on the line then the coordinates satisfy the equation.

Substitute x = 3, y = q into the equation

q = 8(3) + 2 = 24 + 2 = 26

Answer:

[tex]\rm q = 26[/tex]

Step-by-step explanation:

Given :-

The equation of a line is y = 8x + 2, and the point (3,q) lies on this line.

And we need to find out the value of q. Since the point lies on the given line , it will be a solution of the line. On substituting the values of x and y , we have ,

Given line :-

[tex]\rm\implies y = 8x + 2 [/tex]

Substituting the respective values :-

[tex]\rm\implies q = 8*3 + 2 \\\\\rm\implies q = 24 + 2 \\\\\rm\implies \boxed{\rm q = 26 }[/tex]

Hence the value of q is 26 .

Millilitre are used to measure the large amount of volume

Answers

Answer:

false

Step-by-step explanation:

An English professor assigns letter grades on a test according to the following scheme. A: Top 9% of scores B: Scores below the top 9% and above the bottom 61% C: Scores below the top 39% and above the bottom 25% D: Scores below the top 75% and above the bottom 10% F: Bottom 10% of scores Scores on the test are normally distributed with a mean of 72.3 and a standard deviation of 8. Find the minimum score required for an A grade. Round your answer to the nearest whole number, if necessary.

Answers

Answer:

The minimum score required for an A grade is 83.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 72.3 and a standard deviation of 8.

This means that [tex]\mu = 72.3, \sigma = 8[/tex]

Find the minimum score required for an A grade.

This is the 100 - 9 = 91th percentile, which is X when Z has a pvalue of 0.91, so X when Z = 1.34.

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]1.34 = \frac{X - 72.3}{8}[/tex]

[tex]X - 72.3 = 1.34*8[/tex]

[tex]X = 83[/tex]

The minimum score required for an A grade is 83.

NO LINKS OR ELSE YOU'LL BE REPORTED!Only answer if you're very good at math.

Graph the equation below using the slope and y-intercept form.

Answers

Answer:

Answer below

Step-by-step explanation:

The y-intercept is 2, so you know that one point will be (0,2). The slope is 2/3 so you go 2 units up and 3 units to the right from (0,2).

Suppose you were trying to gain an understanding of how the very best painter in an automotive factory works. You know that there is only one painter who far outperforms all of the other painters in the factory, and you know that he uses techniques that no one else in the factory uses. What type of data would you want to collect in this situation

Answers

Answer:

Qualitative data

Step-by-step explanation:

Qualitative methods like an interviews and observations that are considered valuable as of their detail, descriptiveness, and uniqueness.

In this given situation,  it is already known that the specific painter who outperforms in the factory.

And my motive is to gain an understanding with respect to the performing as a best painter for an automative industry so the same information would be observed and interviewed him

Insert the greater than, less than, or equal sign (>, <, or =) to make each statement true.
a. 45⁄45 ____1
b. 1____ 6⁄3
c. 2⁄7 ____1
d. 64⁄23 ____1

Answers

Answer:

a. 45/45 = 1

b. 1 < 6/3

c. 2/7 < 1

d. 64/23 > 1

solve the equation: 1/2n - 3 = 5

Answers

Answer:

n=16

Step-by-step explanation:

Let's solve your equation step-by-step.

1/ 2 n−3=5

Step 1: Add 3 to both sides.

1/ 2 n−3+3=5+3

1/ 2 n=8

Step 2: Multiply both sides by 2.

2*( 1/ 2 n)=(2)*(8)

n=16

Answer:

n=16

Answer:

n=16

Step-by-step explanation:

First you have to do 3+-3 to cross it out

then you have to add 3 to 5

lastly divide 8 and 1/2

Then you get your answer.

Directions: identify weather the problem has a minimum or a maximum type an “X” in the box next to your answer

A) y= x^2+2x-1
Minimum or maximum

B) y=-x^2-8x-1
Minimum or maximum

C) y=2x^2+8x

Answers

Answer:

A)   minimum

B)   maximum

C)   minimum

Step-by-step explanation:

A positive x² coefficent means the parabola opens up and the vertex is the minimum

A negative x² coefficent means the parabola opens up and the vertex is the maximum

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

A)   minimum

B)   maximum

C)   minimum

Consider the three isotopes of carbon. What do the three isotopes have in common? Choose all that apply.
A)
They have the same atomic number.
B)
They have the same number of protons.
c)
They all have four valence electrons.
D)
They have the same number of neutrons.
E)
They have the same average atomic mass number,

Answers

Answer:

a) they have the same atomic number.

c) they all have 4 valence electrons.

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What is the value of this expression when x= -4 and y= 64? -437 + 12 O A O OB. OC. OD. -48 Edison, Xiu, and Amia are childhood friends who go to different high schools. They were wondering if there'sa difference between their schools in the number of friends people have on social media.They each surveyed a random sample of students from their schools, asking for the number of friends theyhave on social media. Here are the results:They want to perform a x2 test of homogeneity on these results.What is the expected count for the cell corresponding to students from Edison's school that have morethan 300 friends?You may round your answer to the nearest hundredth.Expected: What is one benefit to lifelong physical activity?A. healthier dietB. lower risk of strokeC. organized daily scheduleD. lower chance of injury What is the range of the function f(x) = -3x + 1 when the domain is {-2, 0, 3}?A. all real numbersB. {-31, -29, -32}C. {7, 1, -8}D. {-5, 1, -8} triangle abc is similar to triangle fgh solve for x HELP PLZZ Which of the following correctly describes what a mutation is? A change in the DNA code of an organism B change to a gene of an organism C change to the nucleotide sequence D All of the above How far will a skier travel in 2 1/2 minutes? Explain how you figured it out. Which of the following would be distributed throughout a prokaryotic cell, but would befound restricted to the nucleus of an eukaryotic cell?A. RibosomesB. DNAC. Cell MembraneD.Chloroplasts what should be subtracted from -5/3 to get 5/6 The temperature was 14`F`. If the temperature dropped 5 degrees every hour for 4 hours, what is the temperature after the 4 hours? Which equation could represent this situation? Find the volume of the following cylinder in cubic inches Keri pours 6 glasses of juice. Each glass holds 34 cup. How many cups of juice does Keri pour? What is six in Spanish? Triangle LMN is similar to triangle OPQ. Find the measure of side OP. Roundyour answer to the nearest tenth if necessary. A 12-year-old child is having a seizure on a playground. After checking for scene safety, what is the nextbest treatment 1. Calculate the value of 8. 1 103 2. 4 102 in standard form.2. Blood comprises 8% of the weight of a human. Amy weighs 40kg. Find the weight of her blood. When workers stop working entirely, it is called a(n)Answer hereSUB what is the theme of the book just a drop of water.Please give me an answer or i will die why does Montag keep repeating "Lillies" For this color wheel, what is the complimentary color for blue?"CircleO redpurpleOO orangeO turquoise