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3 years ago

Deviede 50 kg rice into two friends in 2: 5 ratio

Mathematics

1 answer:

faust18 [17]3 years ago

6 0

Answer:

50/(2+5) = 7.14285kg can't divide completely

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A proportional relationship between the number of pounds of cabbage (x) and the price in dollars (y) is graphed, and the ordered

stepan [7]

Answer:

The pair (5, 3) means x or the pounds of cabbage is 5 and y or 3 is the dollars

So 5 pounds of cabbage costs $3

Cabbage is $0.60/pound

10,6 means 10 pounds of cabbage costs $6.

Step-by-step explanation:

Just divide the $3 by the 5 pounds of cabbage to get $.60 for each cabbage.

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2 years ago

Parking in a student lot costs $2 for the first half hour and $1.75 for each hour thereafter. A partial hour is charged the same

Masteriza [31]

An easier way to think of this problem is just keep adding for each additional hour:

0.5 hours --> $2

1.5 hrs --> $3.75

2.5 hrs --> $5.50

3.5 hrs --> $7.25

and since you can only spend $7, the maximum time is 2.5 hours

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3 years ago

Read 2 more answers

A gasoline service station offers 20 cents off the regular price per gallon every tuesday. what equation relates the discounted

Leni [432]

R - 0.20 < r would be your answer

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3 years ago

The width of a rectangle is 3 feet less than it’s length. The perimeter of the rectangle is 98 feet. Find the dimensions of the

horsena [70]

Answer:

The length is 26 feet and the width is 23 feet

Step-by-step explanation:

Let l represent the length of the rectangle.

The width can be represented by l - 3, since it is 3 feet less than the length

Set up an equation:

l + l + (l - 3) + (l - 3) = 98

Add like terms and solve for l:

l + l + (l - 3) + (l - 3) = 98

4l - 6 = 98

4l = 104

l = 26

So, the length is 26 feet.

Since the width is l - 3, we can plug this in for l to find the width:

l - 3

26 - 3

= 23

So, the length is 26 feet and the width is 23 feet

4 0

2 years ago

A particular sale involves four items randomly selected from a large lot that is known to contain 9% defectives. Let X denote th

umka2103 [35]

Answer:

The expected repair cost is $3.73.

Step-by-step explanation:

The random variable X is defined as the number of defectives among the 4 items sold.

The probability of a large lot of items containing defectives is, p = 0.09.

An item is defective irrespective of the others.

The random variable X follows a Binomial distribution with parameters n = 9 and p = 0.09.

The repair cost of the item is given by:

$C=3X^{2}+X+2$

Compute the expected cost of repair as follows:

$E(C)=E(3X^{2}+X+2)$

$=3E(X^{2})+E(X)+2$

Compute the expected value of X as follows:

$E(X)=np$

$=4\times 0.09\\=0.36$

The expected value of X is 0.36.

Compute the variance of X as follows:

$V(X)=np(1-p)$

$=4\times 0.09\times 0.91\\=0.3276\\$

The variance of X is 0.3276.

The variance can also be computed using the formula:

$V(X)=E(Y^{2})-(E(Y))^{2}$

Then the formula of $E(Y^{2})$ is:

$E(Y^{2})=V(X)+(E(Y))^{2}$

Compute the value of $E(Y^{2})$ as follows:

$E(Y^{2})=V(X)+(E(Y))^{2}$

$=0.3276+(0.36)^{2}\\=0.4572$

The expected repair cost is:

$E(C)=3E(X^{2})+E(X)+2$

$=(3\times 0.4572)+0.36+2\\=3.7316\\\approx 3.73$

Thus, the expected repair cost is $3.73.

4 0

3 years ago

Deviede 50 kg rice into two friends in 2: 5 ratio​

Deviede 50 kg rice into two friends in 2: 5 ratio