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TEA [102]
3 years ago
10

Geometry ! No links please

Mathematics
1 answer:
DENIUS [597]3 years ago
6 0

The Answer Is CD=5

AB/BC=2

2=BE/CD

2/1=10/X

2/1=10/5

2=2

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A software company keeps a ratio of 2.5 testers to every 10 software developers. If the company hires 20 developer in one year,
pochemuha

Answer:

They will need to hire 5 testers.

Step-by-step explanation:

This question can be solved using a simple rule of three.

For each 10 developers, we need 2.5 testers. So how many testers are needed for 20 developers?

10 developers - 2.5 testers

20 developers - x testes

10x = 20*2.5

10x = 50

x = \frac{50}{10}

x = 5

They will need to hire 5 testers.

6 0
3 years ago
Read 2 more answers
In selling an antique vase for 80 a dealer made a profit of 60%of the cost price what was the cost price
pishuonlain [190]

Answer:

Step-by-step explanation:

cost price x .60 = 80

80/.60 = 133.33 was the cost price

8 0
3 years ago
Lisa solved 3x2 + 1 = 28 as shown.
Alekssandra [29.7K]

x squared = 9  NOT x

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4 0
3 years ago
The total budget for a landscaping project was $349.02, and the project called for 42 plants. What is the average cost per plant
nekit [7.7K]

Answer:

$8.31

Step-by-step explanation:

you have your budget of $349.02 that's for 42 trees you are deciding tour budget by 42 giving you $8.31 per tree.

4 0
3 years ago
An airline company claims in a recent advertisement that more than 94% of passenger luggage that is lost is recovered and reunit
Genrish500 [490]

Answer:

The null hypothesis is  H_o :  p  \le  0.94

The alternative hypothesis is   H_a :  p  >  0.94

Step-by-step explanation:

From the question we are told that

  The sample size is n =  315

   The population proportion is  p =  0.94

   The number of luggage that was recovered and reunited with the passenger in one day is  k =  276

   Generally the sample proportion is  mathematically represented as

       \r p = \frac{k}{n}

=>      \r p = \frac{276}{315}

=>      \r p = 0.876  

The null hypothesis is  H_o :  p  \le  0.94

The alternative hypothesis is   H_a :  p  >  0.94

8 0
3 years ago
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