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Nikitich [7]
3 years ago
7

9. The cost of 20 litres of petrol is £18 Work out the cost of 1 litre of petrol.

Mathematics
2 answers:
yulyashka [42]3 years ago
3 0

Answer:

20 x 1 / 18= 1.11

Step-by-step explanation:

Zepler [3.9K]3 years ago
3 0

20 litres = 18 pounds

20/20 litres = 18/20 pounds ... divide both sides by 20

1 litre = 0.9 pounds

1 litre of petrol costs £ 0.9

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The fencing William chooses costs $29.53 per foot, including installation. What will the fencing cost? Show your work.
TiliK225 [7]

Answer:

C = 29.53x

Step-by-step explanation:

Given

Unit\ cost = \$29.53

Required

The cost of fencing (C)

The cost is calculated as:

C = Unit\ Cost * Perimeter\ of fencing

Let:

x \to Perimeter\ of fencing

So, we have:

C = Unit\ Cost * x

C = 29.53 * x

C = 29.53x

<em>The question cannot be solved further since the dimension of the fence is not given</em>

<em>If you know the dimension, calculate the fence perimeter and substitute the value for x</em>

7 0
3 years ago
Figure out the combination.
Alisiya [41]
You actually have to do the break our rooms to find the code wish i could help
6 0
3 years ago
(a) A mixed hockey team of 11 must have at least 5 boys and at least 5 girls. There are 7 boys and 8 girls available for selecti
guajiro [1.7K]

Answer:

A) I) 49 teams

II)63 teams

B) 28 teams

Step-by-step explanation:

A) a team of 5 boys and 6 Girls

=7C5+ 8C6

= 21+28

= 49 teams

a team of 6 boys and 5 girls

= 7C6 + 8C5

= 7+56

= 63 teams

B) one girl is kept constant already and a guy has injury

Girls remaining to choose from 7

Boys remaining to choose from 6

= 1 +7C5 + 6C5

= 1+21+6

= 28 teams

5 0
3 years ago
What is a factor of: tan^2x + 2tan(x)cos(x) + cos^2(x)
nikklg [1K]
Lets factor  this quadratic function 

the factors  are (tan x + cos x)(tan x + cos x)

So the answer is choice A.
6 0
3 years ago
1. The graph below represents five cities and the routes between them. An out-of-state road inspector is asked to fly into Potts
ollegr [7]

Please see attached image for the graph.


a.       Yes, it is mathematically possible because the degree of vertices for P=3, T=3, M=2, C=4, and R=2 and in Euler’s theorem, the graph has to be connected, which in this case it is and the number of vertices in the graph whose vertices is odd, is 0 or 2. And in this case, we have 2 that have a degree of vertices that are odd, therefore mathematically this is possible for the driver. The route would be P > R > C > M > T > C > P > T.

 

b.       <span>It is mathematically possible. The router would be P > C > R > T > M > C > T. Essentially, you travel each road once.

</span>

c.       The driver would use a Hamiltonian circuit. The route would be J > R > A > C > V > M > T > P > J.

8 0
3 years ago
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