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mote1985 [20]
3 years ago
5

BRAINLIESTT ASAP! PLEASE HELP ME :)

Mathematics
1 answer:
alukav5142 [94]3 years ago
7 0

Answer:

216 min

3 hours and 36 min or 3.6 hours

Step-by-step explanation:

1/9+1/6

6+9/54

15/54

5/18

18/5

60*18/5

1080/5

/= fraction sign

3.6 hours

Step-by-step explanation:

Blake can do work in hours = 9

Blake can do a part of work in 1 hour = 1/9

Ned can paint the same room in six hours.

Ned can do a part of work in 1 hour = 1/6

They can do a part of work together in 1 hour =  1/9+1/6

                                                                          = 5/18  

Now they can do 5/18}  part of work in hour = 1

So, they can do whole work in hours =  1/5/18

                                                            =  3.6

Hence it will take 3.6 hours to paint the room if they work together.

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Two points on line p have
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Answer:

D. ⅔

Step-by-step explanation:

I hope it helps :)

m =   \frac{y_2 - y_1}{x_2 - x_1}  \\ m =  \frac{3 - 1}{5 - 2}  =  \frac{2}{3}  \\ m = \frac{2}{3}

6 0
3 years ago
This is a similar triangle please find the missing length. (?)
stira [4]

Answer:

10

Step-by-step explanation:

Set up as a proportion:

\frac{QR}{QP}=\frac{BA}{BC}, insert given values

\frac{?}{12}=\frac{30}{36}, cross multiple

36*?=30*12

36*?=360, divide both sides by 36 to get the missing side (?) by itself

?=10

3 0
2 years ago
When factored completely, what are the factors of 4x^2-16 ?
Semmy [17]
Use:a^2-b^2=(a-b)(a+b)\\\\4x^2-16=4(x^2-4)=4(x^2-2^2)=\boxed{4(x-2)(x+2)}
8 0
3 years ago
Read 2 more answers
A notebook that costs $0.75 to make in the factory is sold for $1.35.
kvasek [131]

Answer:

a) price markup $0.60

b) percent marked up 180%

Step-by-step explanation:

Amount marked up:

  1.35 - 0.75 = $0.60  

Percent markup:

  0.75x = 1.35

  x = 1.8 or 180%

5 0
3 years ago
Amy reads 12% of a 356 page book each night. Which expression represents the number the of unread pages if Amy reads for x night
katovenus [111]

Answer:

An expression represents the number the of unread pages if Amy reads for x nights is 356-43x

Step-by-step explanation:

Total number of pages in a book = 356

Amy reads 12% of a 356 page book each night.

So, Number of pages read by her each night =\frac{12}{100} \times 356 =42.72 \sim 43

So, number of pages read in x nights = 43x

So, the number the of unread pages after x nights= 356-43x

Hence An expression represents the number the of unread pages if Amy reads for x nights is 356-43x

4 0
3 years ago
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