1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
QveST [7]
3 years ago
14

Working together, Karen and Darren can mow their yard in 40 minutes if they each have a mower and mow at the same time. If Karen

could mow the entire yard by herself in 60 minutes, how long would Darren take to mow the yard working by himself?
Mathematics
1 answer:
Nataly [62]3 years ago
8 0

Answer:

Step-by-step explanation:

Answer:

120mins

Step-by-step explanation:

Karen mows at 60mins, 1 peice of land

Let Darren mows that 1 peice of land at Xmins

The rate at which Karen mows the land would be 1/60 [takes 60mins for 1 piece]

The rate at which Darren mows the land would be 1/x

The average rate working together on one peice of land will be

the combined time

(1/60) +(1/X) = 1/40

[(1/60) + (1/X)]x40 =1 yard

1/X = 1/40 -1/60=(3-2) /120 =1/120

1/X = 1/120

X=120mins

Darren's takes 120mins

You might be interested in
How long will it take 5 machines to complete a task, given that it takes 10 days for 8 machines to complete the same task?
Tamiku [17]

Answer:

Step-by-step explanation:

4 days

8/10 * 5 = 4

4 0
3 years ago
Find a number such that 7 times the number is 56 greater than the opposite of the number.
Elenna [48]

Answer:

hey your answer can be 10 because the oppisite of 56 is 65 and 7x 10 is 70

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
Select the correct answer.
gtnhenbr [62]

Answer:

5 years

Step-by-step explanation:

To determine the number of years needed for the company to process a certain amount of milk, we use the given function which relates the number of years, x, and the gallons of milk, y. We simply substitute the number of gallons to y and solve for x.  

y = x^6 − 9x^4 + 70x^2

630 = x^6 − 9x^4 + 70x^2

Solving for x, we will have

x = 4.8866 years or approximately 5 years

Hope this answer helps you :)

Have a great day

Mark brainliest

7 0
3 years ago
92 divided by 4 use partial and quotients to divide
kherson [118]
The partial quotient is 23
8 0
3 years ago
Read 2 more answers
Solve : <br> 20-9x=11<br> 4(2x+1)=8<br> 5(2x+5)=-15<br> 3(8x+1)=-21
laila [671]
<span>20-9x=11
-9x=11-20
-9x= -9
x= -9/(-9)
x=1


4(2x+1)=8
2x+1=8/4
2x+1=2
2x=2-1
2x=1
x=1/2
x=0.5


5(2x+5)=-15
2x+5= -15/5
2x+5= -3
2x= -3-5
2x= -8
x= -8/2
x=-4

3(8x+1)=-21
8x+1= -21/3
8x+1= -7
8x= -7-1
8x =-8
x= -8/8
x= -1
</span>
4 0
3 years ago
Other questions:
  • Stretch, an adult giraffe, weighed 160 pounds when he was born. Now, he weighs 25 times as much! How many tons does Stretch weig
    5·2 answers
  • Madison drew this shape how many angles less than a right angle does it have?
    7·1 answer
  • Law of sines: sin(A)/a=sin(B)/b=sin(C)/c How many distinct
    15·1 answer
  • Which expression is equivalent to -2(x+4)-(3x+8)
    6·1 answer
  • Yulian works at the zoo feeding the animals. He puts water in the elephant habitat at the beginning of the day. The table shows
    8·1 answer
  • Please solve 21=5n-2(n-3)
    7·2 answers
  • Which place value should you use to compare the numbers?<br><br> 645,853<br> 646,34
    12·1 answer
  • Sampson has a list of items that are on sale to pick up at the store. The sale items are the following:
    11·2 answers
  • What is the arithmetic mean between 10 and 250
    12·2 answers
  • McKenna earns $12 per hour mowing her grandmother yard.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!