To paint a house, two painters are hired. The first painter can paint the house in ten hours. The second painter will need six hours to paint the entire house. If the two painters start painting at 8:00 am, at what time will they finish painting the house?

Answers

Answer 1

Answer: so
p1 can paint hours in 10 hours, so 1/10 house per 1 hour

p2 can paint house in 6 hours so 1/6 house per 1 hour

if both start at 8:00, when finish??
find how many hours they take

1 hour=p1+p2=1/10+1/6
just add 1/10 and 1/6 and see how many to get 1/1 house done
1/10+1/6=3/30+5/30=8/30=4/15
xhours times 4/15=1
multiply both sides by 15/4 to clear fraction
xhours =15/4
xhours=3 and 3/4

they take 3 and 3/4 hours aka 3 hours and 45 mins so
8:00+3:45=11:45

they finish at 11:45 AM

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Simplifying expressions-Please help!!

Answers

Answer:

6.2k

8.11w-10

10.-7m

12.6b

14.8+7x

Step-by-step explanation:

Which of the following best describes the relationship between the focus and directrix of a parabolaA. The focus is half the distance from the parabola as the directrix
B. The focus is twice the distance from the parabola as the directrix
C. They are Equidistant from the parabola
D. They both lie on the graph of the parabola

Answers

Answer:

C)They are Equidistant from the parabola

Step-by-step explanation:

Focus of parabola : The focus of a parabola is a fixed point on the interior of a parabola

Directrix of parabola : A parabola is set of all points in a plane which are at equal distance away from a given point and given line. The given line is called the directrix. The given point is Focus

So, The vertex of the parabola is at equidistant between focus and the directrix.

So, They are Equidistant from the parabola

Hence Option C is correct.

they are equidistant from the parabola
that is how a parabola is constructed

C is answer

3 x +11 = 10 Does this problem have one, many, or no solutions?

Answers

it has just one solution and dats elimination method

one

3x+11=10
minus 11 both sides
3x=-1
divide by 3 boths ides
x=-1/3
one solution

There are 8 tennis balls in a bag. Five ofthe balls are yellow and the other 3 are
green What's the probability of pulling out
a green ball without looking? Write your
answer as a decimal.

Answers

Answer:

3/8 or a a decimal 0.375

Find the slope, please and ty! (=