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4 years ago

Determine the measure of the unknown variables.

Mathematics

1 answer:

gulaghasi [49]4 years ago

7 0

Answer:

<h2><u>First question</u></h2>

Vertically opposite angles are equal

x = 75°

<h3><u>Second question</u></h3>

Vertically opposite angles are equal

5y = 135°

Divide both sides by 5

y = 27

Hope this helps you

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On the first day of June, there were about 17.71 h of daylight in a city. Five months later, there were about 5.30 h of daylig

Andru [333]

Answer:

Percentage increases and decreases, are found by setting the problem up proportionally.

You are trying to find what percentage of 17.37 is 8.30 first.

so What %/100 = 8.30/17.37

Now define a variable:

Let x = What%

x/100 = 8.30/17.37

17.37x = 830

x = 830/17.37

x ≈ 47.78

8.30 is approximately 47.78% of 17.37, so the percentage decrease is 100% - 47.78% = 52.22%

The percentage decrease is approximately 52.22%

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3 years ago

An escalator lifts people to the second floor of a building 25 feet above the first floor. The escalator rises at a 30 degree an

ch4aika [34]

9514 1404 393

Answer:

50 ft

Step-by-step explanation:

The side lengths in a 30-60-90 triangle have the ratios 1 : √3 : 2. The longest side is 2 times the length of the shortest side.

In this geometry, that means the length of the escalator is 2 times its height, so is ...

x = 2(25 ft)

x = 50 ft . . . . . distance a person travels

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3 years ago

Jorge used to pay $26 to park his car for 6.5 hours in a parking garage,

den301095 [7]

Answer:

The parking garage went from charging 4$ an hour to 6$ an hour.

there is a 50% increase

Step-by-step explanation:

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3 years ago

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Flura [38]

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3 years ago

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Ostrovityanka [42]

Answer:

What exactly is this for?

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3 years ago