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kolezko [41]
3 years ago
8

It takes two painters five hours to finish painting a house how long would it take to finish painting a house if there were 20 p

ainters working at the same rate.
Mathematics
2 answers:
adelina 88 [10]3 years ago
7 0

Answer:

the answer is 0.5

Step-by-step explanation:

you have to find the constant of variation which is ten than you need 20 painters so you do 10/20 or 1/2 which is also 0.5

nekit [7.7K]3 years ago
6 0

Answer:

The answer would be 0.5.

Step-by-step explanation:

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Please help
katrin2010 [14]
\dfrac{n^2+3n+2}{n^2+6n+8}-\dfrac{2n}{n+4}\\\\=\dfrac{n^2+2n+n+2}{n^2+4n+2n+8}-\dfrac{2n}{n+4}\\\\=\dfrac{n(n+2)+1(n+2)}{n(n+4)+2(n+4)}-\dfrac{2n}{n+4}\\\\=\dfrac{(n+2)(n+1)}{(n+2)(n+4)}-\dfrac{2n}{n+4}\\\\=\dfrac{n+1}{n+4}-\dfrac{2n}{n+4}=\dfrac{n+1-2n}{n+4}=\dfrac{1-n}{n+4}

Answer:\ \boxed{B.\ \dfrac{1-n}{n+4}}
7 0
3 years ago
Trudy works at a job centre.
denpristay [2]

<span>To solve the problem, to 40% of the total customer should be solve. And this can be solve by muliplting it by the fraction (0.4). so 140 x 0.4 = 56 customers. Since Trudy has already 60 of her sutomers job ready then she met her target.</span>

3 0
3 years ago
What is the greatest common factor of 16ab3 + 4a2b + 8ab ?
ziro4ka [17]

Answer:

2ab(3b^2+2a+4)

Step-by-step explanation:

6ab^3 + 4a^2b + 8ab

2*3*a*b*b^2 +2*2*a*a*b +2*2*2*a*b

Factor out the common terms

2ab( 3*b^2 +2*a +2*2)

2ab(3b^2+2a+4)

5 0
3 years ago
(3 − 4i)(5 + 2i)<br><br> A. 15 − 8i<br> B. 23 − 14i<br> C. 15 − 8i2<br> D. 15 − 14i − 8i2
choli [55]

Answer:

B.23-14i

Step-by-step explanation:

(3x5)+(3x2i)-(4ix5)-(4ix2i)

15+6i-20i-8(-1)

15+6i-20i+8

23-14iฟ

8 0
3 years ago
IGNOR MY ANSWER I ALSO NEED TO KNOW IF IT'S OPEND OR CLOSED Graph the solution to this inequality on the number line.
Alex777 [14]

Answer:

open circle

Step-by-step explanation:

\leq \geq = closed cirle\\ =open circle

6 0
2 years ago
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