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Morgarella [4.7K]
3 years ago
14

Billy spent 8 days collecting cans and he managed to collect 7 pounds. He collected ____ of a pound each day. In fractions

Mathematics
1 answer:
Helga [31]3 years ago
5 0

Answer:

7/8 pounds

Step-by-step explanation:

pounds collected in a day = number of pounds collected in 8 days / number of days

7/8

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Two families are going sailing. Family A leaves the marina and sails 2.3 miles due north, then sails 3 miles due west. Family B
sasho [114]

Answer:

A

Step-by-step explanation:

We can solve this by drawing it out

Family B has part of their north-south direction negated by going 1 degree north of east, because they are going south and then going north. Family A does not do this, and as a result, with all else equal, they go further away.

6 0
3 years ago
keith is the leading goal scorer for a team in an hockey league. last season he scored 42 goals in 82 games. assuming he scores
MAXImum [283]

Answer:

0.512 goals per game

Step-by-step explanation:

Given:

The number of games is represented by 'x' and number of goals is represented by 'y'.

Now, 'y' varies directly with x and at a constant rate.

A direct relationship line is given as:

y=mx

Where, 'm' is the constant rate of change.

Now, for x=82,y=42

So, a point on the line is given as (82, 42).

Plug in the given values in the above equation and solve for 'm'. This gives,

42=82m\\m=\frac{42}{82}\\m=0.512

Therefore, Keith scores at a constant rate of 0.512 goals per game.

4 0
3 years ago
Someone please help me answer
Bingel [31]
Simplify the exponents
3-2=1 therefore it should be 1/7 the third answer. Hope that helps
7 0
3 years ago
Currently 1 United States dollar equals 19.25 Mexican pesos. If you exchanged 725 Mexican pesos for US dollars, what amount woul
Irina18 [472]

Answer:

The value of 725 Mexican pesos is equals to 37.66 US dollars

Step-by-step explanation:

Given as :

The value of 1 US dollar equals to 19.25   Mexican pesos

The total amount of Mexican pesos = 725

Now,

∵  19.25  Mexican pesos equals to 1 US dollars

∴    725  Mexican pesos equals to  \frac{725}{19.25} = 37.66 US dollars

Hence The value of 725 Mexican pesos is equals to 37.66 US dollars Answer

5 0
3 years ago
A tablet PC contains 3217 music files. The distribution of file size is highly skewed with many small files. Suppose the true me
m_a_m_a [10]

Answer:

Let X the random variable who represents the file sizeof music. We know the following info:

\mu =2.3,\sigma =3.25

We select a sample of n=50 nails. That represent the sample size.  

Since the sample size is large enough n >30, we can use the central limit theorem. From this theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And we can approximate the distribution of the sample mean as a normal distribution and no matter if the distribution for X is right skewed or no.

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Let X the random variable who represents the file sizeof music. We know the following info:

\mu =2.3,\sigma =3.25

We select a sample of n=50 nails. That represent the sample size.  

Since the sample size is large enough n >30, we can use the central limit theorem. From this theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And we can approximate the distribution of the sample mean as a normal distribution and no matter if the distribution for X is right skewed or no.

8 0
3 years ago
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