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
Troyanec [42]
3 years ago
15

Aaron can paint a door in 3 hours, and Anna can do the same job in 2 hours. Working together, how many hours will it take them t

o paint a door?​
Mathematics
1 answer:
Naya [18.7K]3 years ago
8 0
Aaron = 3 hours
Anna = 2 hours

3 divided by 2 = 1.5

It should take 1 hour and 30 minutes for both of them to paint a door
You might be interested in
Mike Alyssa Sara and Jessica each have 6 baseball cards how many baseball cards do they have in all​
stepan [7]

Answer:

12

Step-by-step explanation:

its 12

3 0
3 years ago
Read 2 more answers
En una asamblea del colegio acuden padres de los cuatro cursos de la ESO. La cuarta parte de los padres son de 1º ESO, la décima
Evgen [1.6K]

Answer:

Parents from the four ESO courses attend a school assembly. A quarter of the parents are from 1st ESO, a tenth are from 2nd ESO, a quarter are from 3rd ESO and 56 parents are from 4th ESO. a) How many parents attended the assembly? b) How many parents from 1ºESO attended the assembly? c) How many parents of 2nd ESO attended the assembly? d) How many 3rd grade parents attended the assembly?

Step-by-step explanation:

8 0
3 years ago
If an object is launched at an angle of 28° with an initial velocity of 133 ft./s from a height of 6 feet how many seconds will
Tema [17]

Answer:

Hence after  3.98 sec  i.e  4 sec Object will hit the ground  .

Step-by-step explanation:

Given:

Height= 6 feet

Angle =28 degrees.

V=133 ft/sec

To Find:

Time in seconds after which it will hit the ground?

Solution:

<em>This problem is related to projectile motion for objec</em>t

First calculate the Range for object  and it is given by ,

R=v^2Sin(2Ф)/g

Here R= range  g= acceleration due to gravity =9.8 m/sec^2

1m =3.2 feet

So 9.8 m, equals to 9.8 *3.2=31.36 ft

So g=31.36 ft/sec^2. and 2Ф=2(28)=56

R=133^2*Sin(56)/31.36

R=14664.84/31.36

R=467.62  fts

Now using Formula for time and range as

R=VxT

Vx is horizontal velocity

Vx=V*cosФ

Vx=133*cos(28)

Vx=117.43  ft/sec

So above equation becomes as ,

467.62=117.43*T

T=467.62/117.43

T=3.98 sec

T is approximately equals to 4 sec.

4 0
3 years ago
B<br>8<br>7<br>Find the length of "e" to the<br>nearest tenth using the<br>Pythagorean Theorem.<br>​
weeeeeb [17]

Answer:

≈ 10.63

Step-by-step explanation:

Pythagorean Theorem... Possibly the most easy theory in math once you understood it.

Here's the formula.

AB would be the hypothenuse

BC would be the opposite

CA would be the Adjacent.

But let's not make it complicated though, the question is actually quite easy.

You are asked to find AB, the hypothenuse.

The hypothenuse would be C.

BC and CA would be A and B.

It doesn't matter where are you going to place the numbers.

So,  

= 113

Now we would have to square root 113 since  

is an irrational number, and the question asks you to round ro the nearest tenth.

=10.63014581

≈ 10.63

Your answer would be 10.63

Hope this answer helped :)

5 0
3 years ago
A dealer paid $7,000 for a car at an auction. At the dealership, a salesperson sold the car for 30% more than the auction price.
timurjin [86]
30% of $7000 is $2100
25% of $2100 is $525
7 0
3 years ago
Other questions:
  • URGENT an athlete can lift a maximum of 80 pounds. if she uses 3 pound weights when she exercises, what percent is she lifting
    13·1 answer
  • Answer please...................
    15·1 answer
  • What's the vertex of the following equation<br> x² - 6x + 5
    10·1 answer
  • Need help to find the values of x plss❤️
    6·2 answers
  • The sum of three consecutive numbers is eighty-four. Create the equation you would use to solve this problem using x as the vari
    5·1 answer
  • What is the slope of a line perpendicular to the line x/2 − y/3 =1?
    6·1 answer
  • Please help me with this! ASAP
    12·1 answer
  • For what values of m does the graph of y = mx2 – 5x – 2 have no x-intercepts?
    11·2 answers
  • Chi has $11:30 in dimes and quarters. The number of dimes is three more
    12·1 answer
  • Someone pls help me with this
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!