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4 years ago

Suppose that the cost of renting a snowmobile is 37.50 for 5 hours.

Mathematics

2 answers:

Dominik [7]4 years ago

5 0

Answer:

Cost(c) is the dependent variable.

Step-by-step explanation:

The variable that we can change is called the Independent variable.

The dependent variable depends upon the independent variable, as we change the value of the independent variable the value of the dependent variable is also get changed.

Also, here since the cost of renting a snowmobile depends on the hours of renting a snowmobile.

Thus, Cost(c) is dependent variable and hours(h) is independent variable.

mojhsa [17]4 years ago

4 0

The dependent variable is c because the cost depends on how many hours you spend renting the snowmobile.

Brainliest please :)

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A food company sells salmon to various customers. The mean weight of the salmon is 37 lb with a standard deviation of 2 lbs. The

brilliants [131]

Answer:

The standard deviation for the mean weigth of Salmon is 2/3 lbs for restaurants, 2/7 lbs for grocery stores and 1/4 lbs for discount order stores.

Step-by-step explanation:

The mean sample of the sum of n random variables is

$\overline{X} = \frac{X_1+X_2+...+X_n}{n}$

If $X_1, ..., X_n$ are indentically distributed and independent, like in the situation of the problem, then the variance of $X_1 + .... + X_n$ will be the sum of the variances, in other words, it will be n times the variance of $X_1$ .

However if we multiply this mean by 1/n (in other words, divide by n), then we have to divide the variance by 1/n², thus $\overkine{X} = \frac{V(X_1)}{n}$ and as a result, the standard deviation of $\overline{X}$ is the standard deviation of $X_1$ divided by $\sqrt{n}$ .

Since the standard deviation of the weigth of a Salmon is 2 lbs, then the standard deviations for the mean weigth will be:

Restaurants: We have boxes with 9 salmon each, so it will be $\frac{2}{\sqrt{9}} = \frac{2}{3}$
Grocery stores: Each carton has 49 salmon, thus the standard deviation is $\frac{2}{\sqrt{49}} = \frac{2}{7}$
Discount outlet stores: Each pallet has 64 salmon, as a result, the standard deviation is $\frac{2}{\sqrt{64}} = \frac{1}{4}$

We conclude that de standard deivation of the mean weigth of salmon of the types of shipment given is: 2/3 lbs for restaurants, 2/7 lbs for grocery stores and 1/4 lbs for discount outlet stores.

7 0

3 years ago

A rectangular cracker has a length of 5 centimeters and an area f 20 square centimeters. Find its perimeter.

iren [92.7K]

Answer:

18cm

Step-by-step explanation:

We have the length of the rectangle but we need to find the width which we'll call w. Area is a, l is length.

a = l * w

20 = 5 * w

divide both sides by 5 to cancel the multiplication by 5 on the right side

4 = w

The rectangle is going to have two sides that are the length of l, and two sides that are the the length of w. We're looking for the perimiter p.

p = 2l + 2w

p = (2 * 5) + (2 * 4)

p = 18

4 0

2 years ago

there are 60 new houses being built in a neighborhood. Last month, 2/3 of them were sold. This month, 2/5 of the remaining house

SIZIF [17.4K]

Sold Last Month: 60 x $\frac{2}{3}$ = 40

Remaining from last month: 60 - 40 = 20

Sold This Month: 20 x $\frac{2}{5}$ = 8

Remaining from this month: 20 - 8 = 12

Answer: there are 12 houses left to be sold

6 0

3 years ago

A parent deposits $2000 into their child's bank account. The account earns 4%

qaws [65]

Answer:

A = 2000(1.04)^t

Step-by-step explanation:

Using the compound interest formula;

A = P(1+r)^t

P is the principal = $2000

r is the rate = 4% = 0.04

On substituting

A = 2000(1+0.04)^t

A = 2000(1.04)^t

Hence the required expression is A = 2000(1.04)^t

5 0

3 years ago

241 ten in base five?

igor_vitrenko [27]

241/5=48r1
48/5=9r3
9/5=1r4
1/5=0r4
=4431

7 0

3 years ago