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3 years ago

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Jose and Jesus work for spic and span window washers. Jose can wash the windows at city all in 4 hours alone. Jesus can do the s

ame job in 6 hours. if jesus and jose work together, how long will it take them to wash the windows at city hall

1 answer:

Goshia [24]3 years ago

6 0

4 hours subtract 4 from 6 and add 2 and their you go

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I just need help with this problem. Show work if possible. Thanks!

Andrew [12]

Answer:

${:}\longrightarrow$ $\sf 2x^3+20x^2+2ax^2+20ax$

${:}\longrightarrow$ $\sf 2x^2 (x+10)+2ax (x+10)$

${:}\longrightarrow$ $\sf (x+10)2x^2+2ax$

${:}\longrightarrow$ $\sf (x+10)2x (x+a)$

${:}\longrightarrow$ $\sf 2x (x+a)(x+10)$

4 0

3 years ago

I don't understand this question 5,925,020 = 5,000,000 + ------ + 20,000 ----- + 2O

miv72 [106K]

5925020 = 5000000+<u>900000</u>+20000+<u>5000</u>+20

Hope it helps. Please do comment

5 0

3 years ago

Pls help this was due three days ago

Setler [38]

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3 0

3 years ago

Translate to a quadratic equation, then solve using the quadratic formula. The length of a rectangular air filter is 3 inches l

balu736 [363]

Answer:

Width of the rectangle = 17 inches

Length of the rectangle = 31 inches

Step-by-step explanation:

Let w be the width of the rectangle.

Given:

Width of the rectangle = w

Length of the rectangle = 2w - 3

Area of the rectangle $=527\ inches^{2}$

Solution:

We know that the area of the rectangle.

$Area\ of\ rectangle = length\times width$

$w(2w-3)=527$

$2w^{2}-3w-527=0$

Now, we first find the root of the above equation.

Use quadratic formula with $a=2, b=-3, c=-527$ .

$t=\frac{-b\pm \sqrt{(b)^{2}-4ac}}{2a}$

Put a, b and c value in above equation.

$w=\frac{-(-3)\pm \sqrt{(-3)^{2}-4(2)(-527)}}{2(2)}$

$w=\frac{3\pm \sqrt{9+8\times 527}}{4}$

$w=\frac{3\pm \sqrt{9+4216}}{4}$

$w=\frac{3\pm \sqrt{4225}}{4}$

$w=\frac{3\pm 65}{4}$

For positive sign

$w=\frac{68}{4}$

w = 17 inches

So, width of the rectangle is 17 inches.

Length of the rectangle.

$Length = 2\times w-3$

$Length = 2\times 17-3$

$Length = 34-3$

Length = 31 inches

So, length of the rectangle is 31 inches.

Therefore, width and length of the rectangle is 17 inches and 31 inches.

5 0

4 years ago

Do any of y'all know how to do this I'm so confused and I need help plz show ur work btw

uranmaximum [27]

Answer:

I don't know the answer to the first one, but the second one's answer is 8.625

Step-by-step explanation:

1.5*2.5 + 1.5*2.5 + (1.5*1/5)/2 = 3.75 + 3.75 + 2.25/2 =

7.5 + 1.125 = 8.625

4 0

3 years ago