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klasskru [66]
3 years ago
7

Find the value of x on a triangle

Mathematics
2 answers:
Fantom [35]3 years ago
5 0

Answer:

x = 25

Step-by-step explanation:

The sum of the angles of a triangle is 180 degrees.

90 + x+ 2x+15 =180

Combine like terms

105+3x = 180

Subtract 105 from each side

105+3x-105 = 180-105

3x =75

Divide each side by 3

3x/3 = 75/3

x = 25

jarptica [38.1K]3 years ago
3 0

Answer:

25°

Step-by-step explanation:

<h3>2x + 15° + x + 90 °= 180° ( being sum of angles of triangle)</h3><h3>3x + 105° = 180 °</h3><h3>3x = 180 °- 105°</h3><h3>3x = 75°</h3><h3> x = 25°</h3><h3 /><h3>hope it helps :)</h3>
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What is the volume of a square pyramid with a base length of 6cm and a height of 9cm?
emmainna [20.7K]
Answer:
Volume = 108 cm ³

Explanation:
For a square pyramid, the volume can be calculated as follows:
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We have:
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Hope this helps :)
8 0
4 years ago
Can some please help
Nataly [62]

Number of rooms left excluding a quarter of 140 is: 105 rooms.

<h3>What is a Quarter of a Number?</h3>

A quarter is one-fourth. A quarter of a number is therefore, one-fourth of that number or 1/4 part of the number.

Therefore, number of rooms cleaned = 1/4(140) = 35.

A quarter of the 140 rooms is: 35.

Number of rooms left for cleaning in the afternoon = 140 - 35

Number of rooms left for cleaning in the afternoon = 105 rooms.

Learn more about a quarter on:

brainly.com/question/334801

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2 years ago
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Mr iniguez can bike 157 miles in 5 hours . How many miles can he bike 1 hour?​
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