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
aivan3 [116]
3 years ago
9

David can finish painting the room in six hours and his elder brother Anthony can finish it in four hours if both brothers paint

the room together how many hours will it take them and how many minutes
Mathematics
1 answer:
lbvjy [14]3 years ago
5 0

Answer:

2.4 hours

Step-by-step explanation:

David's time = 6 hours

Anthony's time = 4 hours

the combined time is given by the following formula

1/ (david's time) + 1/(anthony's time) = 1/total time

1/6 + 1/4 = 1/Total

4/24 + 6/24 = 1/Total

10/24 = 1/ total   (taking reciprocal of both sides)

24/10 = total

total time = 24/10 = 2.4 hours

You might be interested in
Please help i cany figure this one out​
Montano1993 [528]

Answer:

acute angle

Step-by-step explanation:

Big brain

6 0
2 years ago
Read 2 more answers
theres 30 big balls in a bag. thats 3 times as many small balls in a bag show the equation that goes with the problem
Kamila [148]
X(3)=30
(I hope this is right) ((sorry if it’s not))
4 0
3 years ago
CAN SOMEONE PLEASE HELPPP.I hate trigonometry​
IRINA_888 [86]

Answer:

y= 240

Step-by-step explanation:

let the angle of value 29° be called A

then Sin(A) = opposite side / hypotenuse

then Sin(A) = y / 500

by applying cross multiplication

y = 500×Sin(A)

sin(A)= sin(29) = 0.484809

then multiply by 500

it gives you 242.4048

rounding to the nearest tenth:

240

y= 240ft

4 0
2 years ago
How do you do this and what's the answer?
KonstantinChe [14]
D.........................
3 0
2 years ago
Read 2 more answers
Johnathan needs 3 5/8 yards of blue material and 6 3/4 yards of red material How many yards does Johnathan need in all?
Gala2k [10]
The answer is 10 3/8th I think hope this helps
6 0
2 years ago
Other questions:
  • Complete the pattern 4,15,7,12,10,9 ? ? ? show me how you got your work
    13·2 answers
  • For the given functions f and g find the composition:f(x)=x^2+6x-2 g(x)=x-6
    15·1 answer
  • Simplify x^3/x? need help been stuck on this question forever
    9·2 answers
  • Write the equation of the line that has a slope of - 2/3 and a y-intercept of (0,-7)
    9·2 answers
  • Solve this equation 4log√x - log 3x =log x^2​
    8·1 answer
  • Find the slope between points (4,-5) and (5,-1)
    9·1 answer
  • What is the equation of the line that has a slope of -4 and goes through (-1,6)? O A. y+ 6 = -4(x + 1) OB. y+6= -4(x - 1) OC. y-
    11·1 answer
  • I need someone who will answer all five questions correctly. Give out 100 bonus points for who will answer all 5 correctly
    13·1 answer
  • Find the average gas bill expense from the months: Oct $48, Nov. $57, Dec $61
    8·2 answers
  • Doug is planning to build a model of a sailboat using a scale where 2 inches represents 25 feet. If the sailboat has a sail-heig
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!