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Minchanka [31]
3 years ago
14

2 Question help

Mathematics
2 answers:
tino4ka555 [31]3 years ago
6 0

Answer:

a. 8.58 (8.57142857143)

Step-by-step explanation:

Travka [436]3 years ago
5 0

Step-by-step explanation:

60 divided by 7 = approx. 8-9 min for each task.

7 tasks per hour

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The cost of six hens and one duck at the university poultry farm is GH₵40. While four hens and three ducks cost GH₵36. What is t
Anon25 [30]

Answer:

Step-by-step explanation:

Let's call hens h and ducks d. The first algebraic equation says that 6 hens (6h) plus (+) 1 duck (1d) cost (=) 40.

The second algebraic equations says that 4 hens (4h) plus (+) 3 ducks (3d) cost (=) 36.

The system is

6h + 1d = 40

4h + 3d = 36

The best way to go about this is to solve it by substitution since we have a 1d in the first equation. We will solve that equation for d since that makes the most sense algebraically. Doing that,

1d = 40 - 6h.

Now that we know what d equals, we can sub it into the second equation where we see a d. In order,

4h + 3d = 36 becomes

4h + 3(40 - 6h) = 36 and then simplify. By substituting into the second equation we eliminated one of the variables. You can only have 1 unknown in a single equation, and now we do!

4h + 120 - 18h = 36 and

-14h = -84 so

h = 6.

That means that each hen costs $6. Since the cost of a duck is found in the bold print equation above, we will sub in a 6 for h to solve for d:

1d = 40 - 6(6) and

d = 40 - 36 so

d = 4.

That means that each duck costs $4.

3 0
3 years ago
Two people meet for the first time. What is the probability that they both have the same birthday?
Alenkinab [10]
<span>The first person can have any birthday. That gives him 365 possible birthdays out of 365 days, so the probability of the first person having the "right" birthday is 365/365, or 100%.The chance that the second person has the same birthday is 1/365. To find the probability that both people have this birthday, we have to multiply their separate probabilities. (365/365) * (1/365) = 1/365, or about 0.27%.</span>
8 0
3 years ago
Compute the permutations and combinations. 4 P 4<br> A) 1<br> B) 4<br> C) 24
Elenna [48]
I belive the answer would be B if not im sorry
4 0
3 years ago
Evaluate the expression 4+−4√2+−1√ and write the result in the form a+bi.
castortr0y [4]

In the expression, the real number a equals 12 and the real number b equals -16.

<h3>How to explain the information?</h3>

It should be noted that the expression given is:

= (4 - 2i)²

Therefore, we need to expand the expression. This will be:

= (4 - 2i)(4 - 2i)

= 16 -8i -8i + 4i²

= 16 -16i +4i²

Substitute -1 for i²

= 16 - 16i + 4(-1)

= 16 - 16i - 4

= 12 - 16i

Therefore, the value of the expression is 12 - 16i.

Learn more about expressions on:

brainly.com/question/723406

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Evaluate the expression ( 4 − 2 i )² and write the result in the form a + b i.

8 0
2 years ago
expresa en lenguaje algebraico: la suma de los cuadrados de las edades de maria y miriam, si se sabe que maria tiene el doble de
Anna71 [15]

The sum of the squares of their ages is; 5x²

<h3>How to Solve Algebraic Word Problems?</h3>

We are told that Maria is twice the age of Miriam.

Now, of the age of Miriam is x, then we can say that;

Age of Mariam = x

Age of Maria = 2x

Now, we want to find the sum of the squares of their ages. Thus, this is expressed as;

x² + (2x)²

= x² + 4x²

= 5x²

Read more about Algebraic Word Problems at; brainly.com/question/13818690

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The complete question is;

Express in algebraic language: the sum of the squares of the ages of Maria and Miriam, if it is known that Maria is twice the age of Miriam.

3 0
2 years ago
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