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Agata [3.3K]
3 years ago
15

While on vacation in Europe, you go shopping and buy a large LEGO set that weighs 4 pounds. The post office only shows shipping

rates in kilograms. About what mass is the LEGO set in kilograms?
Mathematics
1 answer:
sergeinik [125]3 years ago
7 0

Answer:

,,,,,

Step-by-step explanation:

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Wilda can do a job in 4 hours that karla needs 5 hours to do. If wilda works 1 hour before karla joins her, how long will it tak
mezya [45]
Wilda can do the job in 4 hours ... she does 1/4 (or 0.25) of it each hour.
Karla can do it in 5 hours ... she does 1/5 (or 0.2) of it each hour.

Wilda worked alone for 1 hour ... 0.25 of the job was done before her helper
arrived.  So only 0.75 of the job remained to be done together.

Working together, they accomplish (0.25 + 0.2) = 0.45 of the job in 1 hour.

How many times do they need to do  0.45  of the job in order to finish
the  0.75  of it that remains ?  That's the number of hours it will take them,
working together.

0.75 / 0.45  =  <em>1 and 2/3</em>

After Wilda worked alone for 1 hour and Karla came along to join her, it will
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8 0
3 years ago
Erin writes the expression “ $6$ less than double a number.”
bixtya [17]

For this case we must algebraically rewrite the given expression. So:

x: It is the variable that represents an unknown number

"double a number" is represented as: 2x

"6 less than double a number" is represented as: 2x-6

So, the final expression is: 2x-6

If we want to rewrite the expression in an equivalent way, we take common factor 2:

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Asnwer:

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3 0
2 years ago
Identify the sampling designs that use voluntary response sampling. Check all that apply.
Marta_Voda [28]

Step-by-step explanation:  

A voluntary response sample is defined as a type of sample made up of self-chosen participants. These participants volunteer to take part in different research studies to share their opinions on topics that interest them. A voluntary response sample is made up of persons who volunteer to take research surveys.

3 0
2 years ago
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Answer:

<em>x</em>/4

Step-by-step explanation:

7/8x-5/8x fractional coefficients = x/4

4 0
3 years ago
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PLEASE HELP! THIS IS DUE TODAY!!!
Dafna11 [192]
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90 : 50 : 20
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5 0
2 years ago
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