David can finish painting the room in 6 hours, and his elder brother Antony can finish it in 4 hours. If both brothers paint the room together, how many hours will it take them?
Answers
Both brothers paint the room together, it will take 2 hours 22 minutes.
Given that,
David can finish painting the room in 6 hours,
And his elder brother Antony can finish it in 4 hours.
We have to determine,
If both brothers paint the room together, how many hours will it take them.
According to the question,
David can finish painting the room in 6 hours,
And his elder brother Antony can finish it in 4 hours.
The combined time is given by the following formula.
Therefore,
For both brothers paint the room together, how many hours will it take them,
Taking reciprocal of both brothers time.
Then,
Which is equals to 2 hours 22 minutes.
Hence, Both brothers paint the room together, it will take 2 hours 22 minutes.
For more information about Division click the link given below.
Answer:
Step-by-step explanation:
1/6+1/4=5/12
5/12 of the job is done in 1 hour
so
5/12+5/12= 10/12
so 10/12 of the job is done in 2 hours
and then simplify 5/6 so then add 1/6
so it is done in 2 hours and 24 minutes
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We know the formula for the area of a circle is:
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Answers
ok so
distance from greenvile to parker=29
distance from greenvile to hadley=?
distance from hadley to greenvile is 12 and 1/2 less than distance between parker and greenvile means
?=-12 and 1/2+29
add
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Answers
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x^2-3x-3=0
Step-by-step explanation:
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B) leading most in the country to prosperity
C) causing a lasting boom in the timber industry.
D) causing massive starvation and a migration of people
Answers
Answer: Option 'D' is correct.
Step-by-step explanation:
Deforestation in Africa has had the effect of causing massive starvation and a migration of people as the number of population of nomads is more in Africa and they live in forests and get their food from there. As forest is the main source for them for their survival.
Deforestation means "Cutting down of trees in a large number ":
So, they get affected by this .
Hence, Option 'D' is correct.
Answers
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Explanation:
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16⁽ˣ⁻⁴⁾ = 64⁽³*ˣ⁾ ;
=(4²)⁽ˣ⁻⁴⁾ = (4³)⁽³*ˣ⁾
→ 4^ [2(x-4)] = 4^ [ 3(3x) ] ;
→ 4^ (2x - 8) = 4^ (9x) ;
→ 2x - 8 = 9x ;
Subtract "2x" from each side of the equation:
→ 2x - 8 - 2x = 9x - 2x ;
→ -8 = 7x ;
→ 7x = -8 ;
Divide EACH SIDE of the equation by "7" ;
to isolate "x" on one side of the equation; & to solve for "x" ;
→ 7x / 7 = -8 / 7 ;
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→ x = - 8/7 ; which is: Answer choice: [C]: " -
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Answers
2,3,5,7,11,13,17,19,23,29,31,37,41,42,47,53,59,61,67,71,73,79,83,80,97