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3 years ago

Can you please help me with these piece wise function things

Mathematics

1 answer:

julsineya [31]3 years ago

8 0

Plug the domain into the function and the y values you get will be [0, 7) and [5,11)
Putting the ranges for each piece together, the lowest number in the range is 0 and the highest number is 11. The zero is included since the inequality sign was ansl equal to. The 11 is not included since it was not equal to.
[0,11) is the range.
Letter A

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Two families went to Rollercoaster World.

Alona [7]

Answer:

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Step-by-step explanation:

Given that:

x = price of a child ticket

y = price of an adult ticket

According to given statement;

3x+2y=170 Eqn 1

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Multiplying Eqn 1 by 3

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Subtracting Eqn 2 from Eqn 3

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Dividing both sides by 5

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Putting x=30 in Eqn 1

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Dividing both sides by 2

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Hence,

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2 years ago

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Otrada [13]

Answer:

60 ships.

Step-by-step explanation:

Let the total number of ships in the naval fleet be represented by x

One-third of the fleet was captured = 1/3x

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Let surviving ships be represented by y

One-seventh of the surviving ships were lost in a storm after the battle = 1/7y

Finally, the twenty-four remaining ships sailed home

The 24 remaining ships that sailed home =

y - 1/7y = 6/7y of the surviving fleet sailed home.

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24 = 6/7y

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Therefore, total number of ships that survived is 28.

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Collect like terms

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x - (1/2x) = 30

1/2x = 30

x = 30 ÷ 1/2

x = 30 × 2

x = 60

Therefore, ships that were in the fleet before the engagement were 60 ships.

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Answer:

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