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mafiozo [28]
3 years ago
13

Your pump empties the water from a swimming pool in 6 hours. When your friend's pump is used together with your pump, the pool i

s emptied in 1.5 hours. How long (in hours) does it take your friend's pump to empty the pool when working alone? Hour(s)
Mathematics
1 answer:
Ivan3 years ago
7 0

(I'm sorry if this is wrong, I'm bad at math but this one was pretty simple really) 6-1.5=4.5

Hope this helps! Let me know

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Plz help! Correct gets brainliest :) I think I know the answer I just want to double check
Gnom [1K]

9x - 24 + 4x = -24 + 14x - x

13x - 24 = 13x - 24

0 = 0

Answer is All real numbers

4 0
3 years ago
Read 2 more answers
Which of the following demonstrates how the 20 is calculated using the combination pattern​
UNO [17]

The combination expression that demonstrates how the 20 is calculated using the combination pattern​ is 6C3

<h3>Permutation and Combination</h3>

While combination has to do with selection, permutation has to do with arrangement.

According to the combination rule

nCr = n!/(n-r)!r!

The expression that gives the result of 20 is expressed below;

6C3 = 6!/(6-3)!3!

6C3 = 6!/3!3!

6C3 = 6!/6*6
6C3 = 720/36
6C3 =20

Hence the combination expression that demonstrates how the 20 is calculated using the combination pattern​ is 6C3

Learn more on combination here: brainly.com/question/4658834

#SPJ1

5 0
2 years ago
What is the degree of x^5-4x+2
8090 [49]

Answer:

degree 5

Step-by-step explanation:

the degree of a polynomial is determined by the term with the largest exponent and is the value of the exponent.

x^{5} is the term with the largest exponent of 5

degree of polynomial is 5


8 0
3 years ago
Segments DF, DH, and GF are tangent to the circle. Andrew was asked to find DF. Explain andrew's error.
ANEK [815]

Answer:

DF = 14

Step-by-step explanation:

Andrew was wrong in the assumption that DE = EF

Segments of tangents to a circle from the same external point are congruent

That is

EF = FG = 8

Then

DF = DE + EF = 6 + 8 = 14

5 0
3 years ago
Factor 2xSquared + 3x+1
Fiesta28 [93]
2x² + 3x + 1
2x² + 2x + x + 1
(2x + 1)(x + 1)
8 0
3 years ago
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