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
mihalych1998 [28]
2 years ago
6

1. It takes 45 minutes for two people to clean six identical rooms. How

Mathematics
2 answers:
Elena L [17]2 years ago
8 0

Answer:

To clean 20 identical rooms 5 people will take 1 hour .

Hope It Helps You.

IgorLugansk [536]2 years ago
5 0

Answer: 5 people will clean 20 rooms in 1 hour.

Step-by-step explanation:

45 minutes is 45/60 = 0.75 hours

The two people invested 2(0.75) = 1.50 man•hrs to clean 6 rooms

each room took 1.5/6  = 0.25 man•hr/room

To clean 20 rooms will take 20(0.25) = 5 man•hrs

5 man•hrs/5 people = 1 hr.

You might be interested in
PLEASE HELP ME IM BEGGING YALL
drek231 [11]

Answer:

False. Correct ratio is \frac{12}{37}

Step-by-step explanation:

the ratio of sine is opposite over hypotenuse

(opposite is the side across from the angle and hypotenuse it the slant line in the triangle)

7 0
3 years ago
I have a trapezoid what is the answer for a 4 inches in height by8 inches in base
andrey2020 [161]
We need to find the other base also in order for us to find out what the area of this is.
4 0
2 years ago
Find y'' if y= 9csc x
sineoko [7]

Answer:

y" = csc(x)[9cot²(x) - csc²(x)]

Step-by-step explanation:

Step 1: Define

y = 9csc(x)

Step 2: Find 1st derivative

y' = -9csc(x)cot(x)

Step 3: Find 2nd derivative

y" = 9csc(x)cot(x)cot(x) + -csc(x)csc²(x)

y" = 9csc(x)cot²(x) - csc³(x)

y" = csc(x)[9cot²(x) - csc²(x)]

4 0
3 years ago
PLEASE HELP ME ON THIS I NEED IT BY TONIGHT ILL MARK YOU THE BRAINLIEST
elixir [45]

Answer:

is i dnt know As I am in 7 class

8 0
2 years ago
In order to join a dancing club there is a $30 startup fee and a $4 monthly fee. If you joined the club and spent $82, how many
kap26 [50]

Answer:

<u>13</u> months attended the club.

Step-by-step explanation:

Given:

In order to join a dancing club there is a $30 startup fee and a $4 monthly fee. If you joined the club and spent $82.

Now, to find the months attend the club.

Startup fee = $30.

Monthly fee = $4.

Total money spent = $82.

So, we deduct the startup fee from the total money spent:

82-30

=\$52.

The remaining amount is $52.

Now, we divide the monthly fee by the remaining amount to get the months attended:

52\div 4

=13.

Therefore, 13 months attended the club.

3 0
2 years ago
Other questions:
  • Please help! Thanks in advance!
    6·1 answer
  • Antoine has $13 in his checking account. He buys some school supplies and ends up with $5 in his account. what was the overall c
    6·1 answer
  • 2) If 20 workers can build a house in 45 days, how many more workers are needed
    5·2 answers
  • Helppppppppp plzzzzzzzzzzz
    10·1 answer
  • Pls answer this for me. How many paving stones, each 1m long and 80cm wide, are needed to cover a compound 13.6m long and 11m wi
    15·1 answer
  • A hot air balloon is released and it rises at a speed of 15 mph. A
    9·1 answer
  • Find the interior angles of a regular polygon which has 6, 10 and 20 sides​
    11·1 answer
  • A population of 2000 fish increases at an annual rate of 7.5%. Write the model, then predict how
    10·1 answer
  • 10. Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 3 liters of natural oil for every 4
    5·1 answer
  • PLEASE HELPP !!<br> :C please <br> I'll give brainly to whoever gets it correct
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!