Hannah and James are married. Every Saturday they take turns to clean their apartment. Hannah cleans it
fast in 3 hours because she does not like to clean. James listens to music, texts, and takes his time while
cleaning. He takes 5 hours. They finally decided to do it together. How long will it take?

Answers

Answer 1

Answer:

4 hours

Step-by-step explanation:

I found the average

(3+5)/2

8/2 = 4

This is probably wrong because logically it wouldn't make sense for them to take longer than 3 hours if two people are cleaning but i dont know

Answer 2

Answer:

1 7/8 hours

Step-by-step explanation:

x/3+x/5=1

5x+3x=15

8x=15

x=1 7/8 hours


Related Questions

what is 30% of $40 is ​

Answers

Answer:

$12

Step-by-step explanation:

Answer:

$12

Step-by-step explanation:

30/100 = X/40

X/40 = 30/100

X*40/40 = 30*40/100

X = 1200/100

X = 12

thrice a number added to 21 equals 300. what is the number?​

Answers

Step-by-step explanation:

21+3x=300

3x=300-21

3x=279

x=279/3

x=93

Answer is 93 , need an explanation?

What is the range of the function shown on the graph above

Answers

Answer:

d

Step-by-step explanation:

there isnt an arrow saying it keeps going past 10

I need help, this is homework due in a few minutes​

Answers

The y-intercept is -6

It opens down.

The measures of the angles of a triangle are shown in the figure below. Solve
for x.

Answers

Answer:

x=11

Step-by-step explanation:

180-109-43=28

4x-16=28

4x=44

x=11

Solve following problems

(2x + 5)/(5x + 2)

and

(4 - 3x) / ( 3x - 4)

Answers

Answer:

(4 - 3x) / ( 3x - 4) = -1

(2x + 5)/(5x + 2) = 0

Step-by-step explanation:

 

which equation in NOT an example of a liner function?

Answers

You have not given any options...

The radius of a circle is 1 mile. what is the circle's area?

Answers

Step-by-step explanation:

A≈3.14mi²

The game is used in a school to rasie money for charity. Each player pays 30p to play this game. To win a bag of crisps players have to sxore exactly 7. Each bag of crisps cost the school 20p. How much should the school expect to raise for charity if 60 peoples played the game​

Answers

Answer:

The answer is "1500p".

Step-by-step explanation:

The given probability is = 7. so, https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B12%7D%20%5C%20%3D%20%5Cfrac%7B1%7D%7B4%7D

It implies, that only if  https://tex.z-dn.net/?f=120 people enjoy the sport, its school will gather https://tex.z-dn.net/?f=%5C%20120%20%5Ctimes%20%5C%2020%5C%20p%20%3D%20%5C%202400%20%5C%20p

But,  https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D its side will survive = 30 people, as well as the school would have to invest https://tex.z-dn.net/?f=%5C%2030%20%5Ctimes%20%5C%2030p%20%5C%20%3D%20%5C%20900p

for lollipops  So, the school will collect = https://tex.z-dn.net/?f=2400%20-%20900%20%3D%201500p

IF RIGHT PLZ GIVE BRAINLIEST  

THANK U  

HAVE A GREAT DAY AND BE SAFE :)

XD

The school can expect to raise approximately £85.71 for charity if 60 people played the game.

If each player pays 30p to play the game, and 60 people played the game, the total amount raised by the school would be:

Total amount raised = Number of players * Cost per player

Total amount raised = 60 * 30p

Now, let's calculate the cost of the crisps won by the players:

Cost of crisps won = Number of crisps won * Cost per crisp

Since each bag of crisps costs 20p, and players have to score exactly 7 to win a bag of crisps, we need to determine the number of bags of crisps won.

To find the number of bags of crisps won, we divide the total number of players by the number of players required to win a bag of crisps:

Number of bags of crisps won = Number of players / Number of players required to win a bag of crisps

Number of bags of crisps won = 60 / 7

Now, we can calculate the cost of the crisps won:

Cost of crisps won = Number of bags of crisps won * Cost per crisp

Cost of crisps won = (60 / 7) * 20p

Finally, to determine the amount the school expects to raise for charity, we subtract the cost of the crisps won from the total amount raised:

Amount raised for charity = Total amount raised - Cost of crisps won

Amount raised for charity = 60 * 30p - (60 / 7) * 20p

To simplify the calculation, we can convert the pence to pounds by dividing by 100:

Amount raised for charity = (60 * 30) - (60 / 7) * 20 = £(1800 - (1714.2857))

Amount raised for charity ≈ £85.71 (rounded to two decimal places)

Therefore, the school can expect to raise approximately £85.71 for charity if 60 people played the game.

To know more about charity click here :

https://brainly.com/question/31888282

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Find the value of x. Round to the nearest tenth

Answers

Answer:

x=24.1

Step-by-step explanation:

soh cah toa

cos(24°)=22/x

cos(24)= 0.9135

0.9135=22/x

0.9135x=22

x=22/0.9135

x=24.1

Answer:

24.1

Step-by-step explanation:

By sine rule:

[tex] \frac{ x}{\sin 90 \degree} = \frac{22}{\sin (90 - 24)\degree} \\ \\ \frac{x}{1} = \frac{22}{ \sin 66 \degree} \\ \\ x =24.081998127 \\ \\ x \approx 24.1[/tex]

Katie draws marbles from a bag. She drew 6 red marbles out of 20 marbles she picked. If she were to draw 10 more marbles, how many of those 10 can she predict to be red?

2


3
4

5

Answers

Answer:

4

Step-by-step explanation:

If red marbles are 10 then answer is 4

The total cost of a tablet device comprises the cost of material, labour and overheads in the ratio 3:4:1. The cost of material is $315. What is the total cost of the tablet?​

Answers

Answer:

$840

Step-by-step explanation:

Given data

The cost of material is $315

The ratio is

3:4:1

The total number of part is

3+4+1= 8

Let us apply the part to all method

let the total cost be x

hence

3/8=315/x

cross multiply

3x= 8*315

3x= 2520

divide both sides by 3

x= 2520/3

x= $840

Hence the total money is $840

can somebody help me?

Answers

Answer:

80+5x

please mark me brainliest

Step-by-step explanation:

The Dial and the Lewis families when to Taco Box for dinner. The Dials bought 3
burrito meals and 4 taco meals for $48. The Lewis' bought 6 burrito meals and 2
taco meals for $60. How much does a burrito meal cost? How much does a taco
meal cost?

Answers

Answer:

A burrito costs $8, while a taco costs $6.

Step-by-step explanation:

Given that the Dial and the Lewis families when to Taco Box for dinner, and the Dials bought 3 burrito meals and 4 taco meals for $ 48, while the Lewis' bought 6 burrito meals and 2 taco meals for $ 60, to determine how much does a burrito meal cost and how much does a taco meal cost make the following calculations:

3B + 4T = 48

3B = 48 - 4T

6B + 2T = 60

6B = 60 - 2T

3B = 30 - 1T

30 - 1T = 48 - 4T

30 = 48 - 4T + 1T

30 - 48 = -3T

-18 = -3T

-6 = -T

6 = T

3B + 4x6 = 48

3B + 24 = 48

3B = 24

B = 24/8

B = 8

6x8 + 2x6 = 60

48 + 12 = 60

60 = 60

Thus, a burrito costs $ 8, while a taco costs $ 6.

Write an exponential function to describe the given sequence of numbers,
7. 28. 112, 448, 1792)

Answers

Answer:

y=7*4^(x-1)

Step-by-step explanation:

y=a*b^(x-1)

x=1, 7=a

28=7b

b=4

y=7*4^(x-1)

¿Qué representa 34?

Answers

Answer:

El número 34 en numerología simboliza optimismo, espiritualidad, análisis, autoexpresión, introspección, pragmatismo. Si el número 34 es el número de tu destino, lo más probable es que seas una persona muy espiritual, sabia e intuitiva.

Step-by-step explanation:

The mean breaking strength of yarn used in manufacturing drapery material is required to be more than 100 psi. Past experience has indicated that the standard deviation of breaking strength is 2.4 psi. A random sample of 9 specimens is tested, and the average breaking strength is found to be 100.6 psi.

Required:
a. Should the fiber be judged acceptable? Use the P-value approach.
b. What is the probability of not rejecting the null hypothesis at α=0.05 if the fiber has a true mean breaking strength of 102 psi?
c. Find a 95% one-sided lower CI on the true mean breaking strength.
d. Use the CI found in part (d) to test the hypothesis.
e. What sample size is required to detect a true mean breaking strength of 101 with probability 0.95?

Answers

Answer:

H0: μ = 100 ; H1: μ > 100 ;

Test statistic = 0.75 ;

We fail to reject null ;

Kindly check explanation for the rest

Step-by-step explanation:

Given that :

H0: μ = 100

H1: μ > 100

Sample mean, x = 100.6 ; n = 9 ; sample Standard deviation, s = 2.4

Test statistic :

(x - μ) ÷ s/sqrt(n)

(100.6 - 100) ÷ 2.4 / sqrt(9)

0.6 ÷ 0.8 = 0.75

Probability of not rejecting the null :

P = P(Z > 0.75) = 0.22663

α = 0.05

Since, P > α ; we fail to reject the Null ; there is no sufficient evidence to accept the claim that mean strength is > 100 psi

μ + Zcritical*s/sqrt(n)

Zcritical at (1 - α) = 1.645

100 + 1.645*(2.4/3)

100 + 1.316 = 101.316

(x - μ) ÷ s/sqrt(n)

(101.316 - 102) ÷ 2.4 / sqrt(9)

-0.684 ÷ 0.8 = 0.75

= - 0.855

P(Z < - 0.855) = 0.1963 (Z probability calculator).

95% lower confidence interval :

x - error margin, E

E = Zcritical * s/sqrt(n)

E = 1.645 * 0.8 = 1.316

100.6 - 1.316 = 99.284

From part c :

Interval becomes ;

(99.284, 101.316) ; this interval contains the hypothesized mean value of 100. Hence we fail to reject the null.

Parker went shopping for a new pair of sneakers. Sales tax where he lives is 5%. The price of the pair of sneakers is $23. Find the total price including tax. Round to the nearest cent.

Answers

Answer:

c

Step-by-step explanation:

cc

HELLLPP ANY HELPS PLEASE I NEED HELP I AM RUNNING OUT OF TIME !!

Answers

G/9 and it says I need at least 20 characters

Answer:

Option C

g/9

Step-by-step explanation:

g ÷ 9

[tex] = \frac{g}{9} [/tex]

which expression is equivalent to 3(y-6)? (A.3y-6) (B.2y-18+y) (C.5y+18-2y) (D.2y-18-5y​

Answers

Answer:

Step-by-step explanation:

3(y-6)=3y-18

which can be expressed as

2y-18+y

If 3 apple cost $4 , how much would one apple cost? Round to the nearest cent

Answers

Answer:

$1.33

Step-by-step explanation:

If 3 apple cost $4. Then the cost of one apple will be $1.33 per apple.

What are ratio and proportion?

A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.

If 3 apple cost $4.

Then the cost of the one apple will be given by the quotient of 4 and 3.

Then the price of one apple will be

⇒ $4/3

⇒$1.33 per apple

Thus, the cost of one apple will be $1.33 per apple.

More about the ratio and the proportion link is given below.

https://brainly.com/question/14335762

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Jim estimated that it would take him 45 minutes
to complete the homework. If ACTUALLY took
him 25 minutes. What was his percent error?

Answers

80%.

Percent error = | Estimate - Actual | / Actual = |45-25| / 25 = 20/25 = 0.80

Using the ratio 3 dogs to 2 cats if you had 15 dogs how many cats would there be

Answers

Answer: 10 cats

Step-by-step explanation:

3/2

15/x

3*5=15

2*5=10

3/2=15/10

Answer:

20

Step-by-step explanation:

20

Plz help it’s due today’s

Answers

Answer:

% increase

Step-by-step explanation:

80(1.15) = 92

plzz help asap.......​

Answers

Answer:

29.78 feet

Step-by-step explanation:

Find the area of the figure.
4 ft
8 ft
5 ft
8 ft
ft?

Answers

Answer: 320 ft

Step-by-step explanation:

4) Sherry is doing a class project and wants to see whether people in her community are more likely to consider themselves introverts' or 'extroverts. She gets a few friends together with clipboard surveys and they go to a mall entrance where they ask people to participate in a brief survey. They find that 86% of the respondents consider themselves extroverts. This result is​

Answers

Answer:

d

Step-by-step explanation:

Solve the system of equations:
4x - 3=-2x + 9


Answers

Answer:

x=2

Step-by-step explanation:

Step 1: Add 2x to both sides.

4x−3+2x=−2x+9+2x

6x−3=9

Step 2: Add 3 to both sides.

6x−3+3=9+3

6x=12

Step 3: Divide both sides by 6.

6x = 12

6 6

x=2

Answer:

42 as i dont know so ask jeff ma boy from da sewers

Step-by-step explanation:

is this graph a negative association or positive association

Answers

A positive association, because the graph is pointing upwards.

Answer:

This graph is positive

Step-by-step explanation:

Marc claims that V17 is greater than 71. Jenny claims that it is
impossible to compare the numbers without a caldulator. Is either
friend correct? Explain.

Answers

None of them are correct the square root of 17 will obviously be less than the square root of 71 to the 3rd power. As for Jenny it is definitely possible to calculate this without a calculator.
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