2. Christine can bake cookies for a school bake sale to
raise money for the school's soccer team in 9 hours. If
her friend, Emily, on the soccer team helps her, it only
takes 4 hours. How long would it take Emily to bake the
cookies alone?

Answers

Answer 1

Answer:

the time taken by Emily to bake the cookies alone is 7.2 hours

Step-by-step explanation:

The time taken by Emily to bake the cookies alone is shown below:

Given that

Christine can bake cookies in 9 hours

And, if her friend Emily is also helps her so it only takes 4 hours to bake the cookies

Now based on the above information

[tex]\frac{1}{9} + \frac{1}{x} = \frac{1}{4} \\\\\frac{1}{x}= \frac{1}{4} - \frac{1}{9} \\\\\frac{1}{x}= \frac{9 - 4}{36} \\\\\frac{1}{x}= \frac{5}{36} \\\\x = \frac{36}{5}\\\\= 7.2 hours[/tex]

Hence, the time taken by Emily to bake the cookies alone is 7.2 hours


Related Questions

question 1) 25of a number is 80. What is 34of the same number?

Answers

Answer:

55 stamps, 24 girls, and 60cm

Step-by-step explanation:

Big Brain

BRAINLIEST PLUS 30 points if correct! NO LINKS OR WILL REPORT

Answers

Answer:

Do the two data sets have approximately the same center? No.

Which data set has the greater spread? The first one.

Step-by-step explanation:

Hope it helps !!:)

HELP ME PLEASE I'll give brainless.

Answers

Answer:

<QRP=42 degrees

Step-by-step explanation:

Since the angles are sequential, they are the same. This is because the transversal cuts across parallel lines, creating said sequential angles.

Answer:

42 degrees since QS&TV are parallel

find the equation of the line passing through points (-1,-6) and (3,5)

Answers

Answer:

y=11/4x-13/4

Step-by-step explanation:

Use the slope formula and slope-intercept form y=mx+b to find the equation.

Please please please help me fast

Answers

The answer is A, because if you look, it 55 is the mid range.

Answer:

I would choose A as the right answer

A pool is 6/7 full of water. If 1/6 of the water leaks out, how full will the pool be?

Answers

Subtract 1/6 from 6/7

First rewrite the fractions to have a common denominator:

6/7 = 36/42

1/6= 7/42

Now you have 36/42 - 7/42 = 29/42

The pool is 29/42 full

All written in simplest form...
How full the pool will be:

As a fraction - 29/42
As a decimal - 0.690472
As a percentage - 69.05%

ill mark brainliest, question is attached

Answers

Answer:

y = 10

Step-by-step explanation:

2 (4y - 7) = 66

8y - 14 = 66

8y = 80

y= 10

The table below shows the relationship between the side length of a polygon and its perimeter. Which of the following is the constant of proportionality for this relationship?
A.125
B.8
C.1
D.4

Answers

Answer:

A is the correct answer

Step-by-step explanation:

PLZ HELP QUICK WILL MARK BRAINLIEST

Answers

Answer:

Step-by-step explanation:

12.

the formula for the volume of a cone is V=1/3hπr²

549.5 = 1/3(21)(3.14)(x)^2

549.5 = 7(3.14)(x)^2

549.5 = 21.98(x)^2

549.5 = 21.98(x)^2

divide by 21.98 on both sides

25 = (x)^2

sqrt 25 = sqrt x^2

5 = x

13.

the formula for the volume of a sphere is V=4/3πr^3

v=4/3(3.14)9^3

v=4/3(3.14)729

v=(4.186)729

v=3052.08

14.

the formula for the volume of a sphere is V=4/3πr^3

523=4/3(3.14)r^3

523=4/3(3.14)r^3

523=(4.186)r^3

divide by 4.186 on both sides

124.92=r^3

cube root on both sides

4.998=r

round

5=r

Please mark brainliest this took me a while

Solve for x. Assume lines that appear to be tangent are tangent

Answers

Answer:

x = 135

Step-by-step explanation:

x = 9x15

= 135

x = 135

PLEASE HELP. NO LINKS (ALL LINKS WILL BE REPORTED) NEED REAL EXPLANATION AND THE CORRECT ANSWER/ANSWER CHOICES

Answers

answer BD is 108

Step-by-step explanation:

60^2+x^2=85^2

3600+x^2=7225

×^2=7225-3600

×^2=3625

Sq root both sides

x= 60

60+48=108

BD=108

Please help me the question is in the picture and the answers are one of the below

Answers

40%
explanation: 40% of 75 is 30 and the difference between the two prices is $30
hope that helps!!

WORTH 50 POINTS please help

Answers

Answer:

See below.

Step-by-step explanation:

Part A

Function A.

x  y

3  3

5  7

6  9

slope = (9 - 7)/(6 - 5) = 2

y = 2x + b

3 = 2(3) + b

b = -3

y = 2x - 3

Function A is y = 2x - 3

Function B.

(0, 3)

(-5, 0)

slope = (0 - 3)/(-5 - 0) = -3/-5 = 3/5

b = 3

Function B is y = 3/5 x + 3

Function C is 3x + 1

Part B

The rate of change of a linear function is the slope.

Answer:

Function B

Function A

Function C

Chad boughtsome things at the store he paid for them was $6 he received $4.52 in change how much did the things that he bought cost​

Answers

Answer:$1.08 cents.

Step-by-step explanation:

$6 - $4.52 = $1.08.

what is the next two numbers in the pattern below?
8,4,2,1/2
please answer first one gets brainliest!!!

Answers

Answer:

Next numbers: 1/4, 1/8

The pattern is that you're halving the numbers

How many different outfits can I make with 6 shirts 4 pants and 3 pairs of shoes ?

Answers

Answer:

72

Step-by-step explanation:

(6x4)x3

24x3

72 there you go

a shark dove under water.First he dove 8 5/6 yards below sea level. Then he came up 5 1/2 yards. Finally, he dove 6 1/4 yards deeper. What was the sharks depth then?

A:8 1/2 yards
B:15 1/24 yards
C:8 17/24 yards
D:8 7/12 yards

Answers

I think the answer is A

Answer:

9 7/12

Step-by-step explanation:

you may have mis typed an answer or the answer choice has a typo

8 5/6 - 5 1/2 + 6 1/4 or 8.83333333 - 5.5 + 6.25 = 9.58333333 or 9 7/12

Jake makes nine loads of all the bread. He uses 30 grams of olives in each loaf. He started with 1 kg of olives how many grams of olives does Jake have left

Answers

9514 1404 393

Answer:

  730 grams

Step-by-step explanation:

1 kg is 1000 g.

The amount remaining is ...

  1000 g - 9(30 g) = (1000 -270) g = 730 g

Jake has 730 grams of olives left.

please help me with this im struggling​

Answers

the answer is C or it got to be D or B

A 20-ounce soft drink costs $1.80. A 12-ounce soft drink costs $1.32.

Answers

Answer:

Where do you get this soft drink?

To disinfect 1 quart of stream water to make it drinkable, you need to add 2 tablets of iodine. How many tablets do you need to disinfect 4 quarts?

Answers

Answer:

x = 8 tablets are needed to disinfect 4 quarts

Step-by-step explanation:

Write and solve an equation of ratios:

 1       2 tablets

----- = ---------------

  4             x

Cross-multiplying, we get x = 8 tablets are needed to disinfect 4 quarts

Answer:

8 tablets

Step-by-step explanation:

A hexagon is inscribed in a circle As see in the picture.Find the length of an arc between consecutive vertices. Round to the nearest hundred

Need help homework

Answers

Answer:

The length of the arc between consecutive vertices is:

[tex]S=8.38\: in[/tex]

Step-by-step explanation:

The angle between consecutive vertices is 60°, it is because it forms an equilateral triangle.

Now, the length arc is defined as:

[tex]S=R\theta[/tex]

Where:

R is the radius (R = 8 in)θ is the angle of the arc

We see the angle is in grades, but we need to convert it to radians.

[tex]\theta=\frac{60^{\circ}}{360^{\circ}}(2\pi)[/tex]

[tex]\theta=1.05\: rad[/tex]

Finally, the length of the arc between consecutive vertices will be:

[tex]S=8*1.05[/tex]

[tex]S=8.38\: in[/tex]  

I hope it helps you!

A ramp is being built next to a 4-inch high sidewalk. The
ramps angle of inclination is 10 degrees. Estimate the
length of the ramp to the nearest tenth of an inch.

Answers

See attachment for reply.

If the ramps angle of inclination is 10 degrees. The length of the ramp to the nearest tenth of an inch is: 23 inches.

Length of the ramp

Using this formula

Sin10°=4/R

Where:

R=Length of the ramp=?

Let plug in the formula

R=4/Sin10°

R=4/0.173648

R=23.04

R=23 inches (Approximately)

Inconclusion the length of the ramp to the nearest tenth of an inch is: 23 inches.

Learn more about Length of the ramp here:https://brainly.com/question/3871090

A team of students is designing a new game to help their class review for a science test. They will make a rolling cube
with a side length of 7 cm as part of the game.
7 cm
How much material will they need to make the rollina cube?

Answers

Answer: volume of the cube is (7 cm)^3= 343 cm^3

What is the remainder when f(x) = x2 + 14x − 8 is divided by (x − 4)?

80
64
56
52

Answers

Answer:

Answer: The remainder is 64.

Answer:

[tex]f(x) = {x}^{2} + 14x - 8 \\ factor \: = \: (x - 4) \\ x = 4 \\ f(4) = {4}^{2} + 14(4) - 8 \\ = 64 \\ remainder \: = \: 64[/tex]

need help pls and thank you​

Answers

Answer:

[tex]\sqrt{180}[/tex] and [tex]6\sqrt{5}[/tex]

Step-by-step explanation:

The easiest way to solve this problem is to look at all the simplified radicals on the right. Then un-simplify them by bringing the coefficients under the radical. If the radican (value under the radical) of the radical on the right is equal to the radican on the left, then the two radicals are equal.

To un-simplify a radical, one will square the coefficients and then multiply that value by the current radican of expression. The result is the un-simplified value of the radical.

A.

[tex]3\sqrt{15}\\\\= \sqrt{15*(3)^2}\\\\=\sqrt{15*9}\\\\=\sqrt{135}[/tex]

[tex]\sqrt{45} \neq \sqrt{135}\\\sqrt{45} \neq 3\sqrt{15}[/tex]

B.

[tex]3\sqrt{5}\\\\=\sqrt{5*(3)^2}\\\\=\sqrt{5*9}\\\\=\sqrt{45}[/tex]

[tex]\sqrt{75} \neq \sqrt{45}\\\sqrt{75} \neq 3\sqrt{5}[/tex]

C.

[tex]9\sqrt{6}\\\\=\sqrt{6*(9)^2}\\\\=\sqrt{6*81}\\\\=\sqrt{486}[/tex]

[tex]\sqrt{54} \neq \sqrt{486}\\\sqrt{54} \neq 9\sqrt{6}[/tex]

D.

[tex]6\sqrt{5}\\\\=\sqrt{5*(6)^2}\\\\=\sqrt{5*36}\\\\=\sqrt{180}[/tex]

[tex]\sqrt{180}=\sqrt{180}\\\sqrt{180}=6\sqrt{5}[/tex]

OMG HELP PLS IM PANICKING OMG OMG I GOT A F IN MATH AND I ONLY HAVE 1 DAY TO CHANGE MY GRADE BECAUSE TOMORROW IS THE FINAL REPORT CARD RESULTS AND I DONT WANNA FAIL PLS HELP-

Answers

Answer:

3 tens

2 hundreds

5 thousands

7 thousands

The Peak Library Book Club was doing a bake sale. Their goal was $550 for the entire week. The sale has lasted 4 days so far and each day they raised about $135.50. Will they make their goal by day 4? If not, how much do they need on day 5 to meet it?

Answers

Answer: See explanation

Step-by-step explanation:

Since their goal was $550 for the entire week and the sale has lasted 4 days already and each day they raised about $135.50, the amount raised for the 4 days will be:

= $135.50 × 4

= $542.00

No, they won't make their goal by the 4th day.

The amount needed on the 5th day will be:

= $550 - $542

= $8

They'll need $8 on the 5th day.

Please help its due today!!!

Answers

Answer:

1.) 2

2.) -5

Step-by-step explanation:

PLZZZZ HELP Alg 2 math

Consider the given equation and graph (picture provided)

What are the approximate solutions to the equation

Answers

The approximate solutions of the equations are

A, x = 1 and x = 4.2

How to find solution of system of equations on a graph

To find the solution of a system of equations using a graph, you can Identify the point of intersection

Look for the point(s) where the graphs of the equations intersect. This point represents the solution(s) to the system of equations.

then read the coordinates of the point

From the graph, the x coordinates that gives the point of intersection can be traced to be x = 1 and x = 4.2

Learn more about graphical solutions at

https://brainly.com/question/19040584

#SPJ1

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