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2 years ago

15

James can finish a job in 1.5 hours. Jane can finish the same job in one hour. How long will it take them to finish this job if

they work together?

2 answers:

riadik2000 [5.3K]2 years ago

8 0

Answer:

36 minutes

Step-by-step explanation:

thank me later

aleksandrvk [35]2 years ago

7 0

It will take an hour and 15 minutes

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Slove by using elimination <br> 3x+7y=27 <br> -3x+y=21

tankabanditka [31]

Answer:

x = -5

y = 6

Step-by-step explanation:

3x + 7y = 27 --------------(I)

-3x + y = 21 -----------(II)

Add equation (I) & (II) and so x will be eliminated and we can find the value of y.

(I) 3x + 7y = 27

(II) <u> -3x + y = 21 </u> {add}

8y = 48

y = 48/8

y = 6

Plugin y = 6 in equation (I)

3x +7*6 = 27

3x + 42 = 27

3x = 27 - 42

3x = -15

x = -15/3

x = -5

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2 years ago

The perimeter of a rectangle is given by the formula P=2l+2w, where l represents the length and w represents the width. What is

Alex73 [517]

Answer:

Replace l with 110 and w with 120

P = 2(110) + 2(120)

P = 220 + 240

P = 460 feet

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3 years ago

80 divided by (16 divided by 2/5 + 3.75

Katarina [22]

Answer:

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Step-by-step explanation:

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2 years ago

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AVprozaik [17]

Answer:C would be the correct answer

Step-by-step explanation:

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2 years ago

Find the product. (x-3)^2

r-ruslan [8.4K]

Greetings and Happy Holidays!

Find the Product:
$(x-3)^2$

Expand:
$=(x-3)(x-3)$

Use FOIL or other techniques to solve binomial multiplication:
$=x(x-3)-3(x-3)$

$=x^2-3x-3(x-3)$

$=x^2-3x-3x+9$

Combine like terms:
$=x^2-6x+9$

The Answer Is:
$\boxed{=x^2-6x+9}$

I hope this helped!
-Benjamin

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2 years ago