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dimulka [17.4K]
4 years ago
9

Seth can build a doghouse in 6 hours. Violet can build a doghouse in 5 hours. How long will it take to build the dog house if th

ey work together?
Mathematics
1 answer:
Sliva [168]4 years ago
4 0

Answer:

It will take a total of 2.73 hours if they worked together

Step-by-step explanation:

Here, we are seeking to calculate the joint rate.

Let the amount of work to be done is say x

Seth’s rate will be x/6 , while violet’s rate will be x/5

Their joint rate will be ;

x/6 + x/5 = 11x/30

The time it will take them to build the house together will be equal to the amount of work divided by the joint rate.

That will be x divided by 11x/30

= x * 30/11x

= 30/11 hours which is Approximately 2.73 hours

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30% of the library books in the fiction section are worn and need replacement. 10% of the nonfiction holdings are worn. The libr
Nady [450]

Answer:

0.0048 or 0.48%

Step-by-step explanation:

Please see the attached files for details.

8 0
4 years ago
Your price on a particular model is $125 however to get a service contract you offer to sell it for $115 how much discount are y
Arisa [49]
It would be an 8 percent discount because 115 is 92 percent of 125.
6 0
4 years ago
Please please please help me!
OleMash [197]

Answer:

<76

Step-by-step explanation:

Remark

You can't do this problem unless CD and E are all on the same line. If they are, then you can use || line properties.

Properties

<ABG = x                       Given

<ABG = <BGF               Alternate interior angles are equal.

<BGF = x                       Substitute

x + 2x - 9 = 180             Consecutive angles in a ||gram equal 180 degrees.

3x - 9 = 180                    Add 9 to both sides

3x - 9 +9 = 180 +9

3x = 189                         Divide by 3

x = 63

<DHG = 2x - 50            Given

<DHG = 2*63 - 50         Substitute for x

<DHG = 76

<IDC  = 76

<DHG and <IDC are corresponding angles and are equal; it is a property of parallel lines.

6 0
4 years ago
Is 17/20 less than 1 whole
Yuliya22 [10]

Answer:No

Step-by-step explanation:

4 0
3 years ago
I need help can some please answer this 2 2/3+1 1/2
irakobra [83]

Answer:

25/6 or 4 1/6

Step-by-step explanation:

1) convert these fractions to improper fractions first:

8/3+3/2

make like denominators  by multiplying 8/3 by 2 and 3/2 by 3

so 8*2/3*2=16/6

3*3/2*3=9/6

16/6+9/6=25/6

Hope this helps!

3 0
3 years ago
Read 2 more answers
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