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Fynjy0 [20]
2 years ago
13

Shopkeeper sells tins of the same dog food in packs of four or packs of six.

Mathematics
1 answer:
timofeeve [1]2 years ago
3 0

Answer:

Pack of 6

Step-by-step explanation:

Pack of 4 = £1

Packs of 6 = £1.20

Price per unit of each pack:

Pack of 4 ;

Unit price : cost / units

Unit price = £1 / 4 = £0.25

Pack of 6 ;

Unit price : cost / units

Unit price = £1.20 / 6 = £0.20

Pack of 6 is the best value for money as it has a lower unit price

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Imagine that you have developed a genetic test to detect the dominant allele (A) that cause a rare genetic condition. As with mo
s344n2d4d5 [400]

Answer:

Correct option: (B) 1.495%.

Step-by-step explanation:

Denote the events as follows:

<em>X</em> = the test is positive.

<em>A</em> = a person with the dominant allele

The information given are:

P(X|A)=1\\P (X|A^{c})=0.005\\P(A)=0.01

According to the law of total probability the probability of an event <em>A, </em>conditional upon the occurrence of another event <em>B</em> is:

P(A)=P(A|B)P(B)+P(A|B^{c})P(B^{c})

Use this law to compute the probability of person having a positive result as follows:

 P(X)=P(X|A)P(A)+P(X|A^{c})P(A^{c})\\=(1\times0.01)+(0.005\times(1-0.01))\\=0.01+0.00495\\=0.01495

The percentage of positive result is: 0.01495 × 100 = 1.495%.

Thus, the percentage of the population will give a positive test is 1.495%.

4 0
3 years ago
What is -7v(v+7)-2(1+4v)
son4ous [18]

Answer:

-7v² - 57v - 2

Step-by-step explanation:

-7v² - 49v - 2 - 8v

-7v² - 57v - 2

5 0
3 years ago
Prime factorisation of 500​
Andrews [41]

\boxed{\underline{\bf \: ANSWER}}

2 <u>| 500</u>

2 <u>| 250</u>

5 <u>| 125</u>

5 <u>| 25</u>

5 <u>| 5</u>

1 <u>| 1</u>

Prime factorisation of <u>500 = 2 × 2 × 5 × 5 × 5 × 1</u>

_____

Hope it helps.

ᏒᎯᎨᏁᏰᎾᏯᏕᎯᏝᎿ2222

6 0
2 years ago
How much area does the goat have to move around in the barn round to the nearest hundredth (Use 3.14 for up)
PSYCHO15rus [73]
Hello,
A goat is on 15 for rope in the barn means that the radius is 15 feet.
Area of the circle=
πr^2

A=π×15^2
A=225π
A=706.5 square feet. As a result, 706.5 square feet is your final answer. Hope it help!
5 0
3 years ago
Dani has only 1/2 of a cup of baking mix. She needs 3/4 of a cup for one batch of muffins. Which solution method shows how much
Vilka [71]

Answer:

Step-by-step explanation:

Dani has only 1/2 of a cup of baking mix. She needs 3/4 of a cup for one batch of muffins. Which solution method shows how much of a batch of muffins Dani can make?

3 0
3 years ago
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