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zzz [600]
3 years ago
15

Please help. I've been working on this problem for more than 2 hours. Thank you.

Mathematics
1 answer:
I am Lyosha [343]3 years ago
6 0

Answer:

20° and 70°

Step-by-step explanation:

(4x-10)+(2x-20)=90

6x-30=90

6x=90+30

6x=120

x=20

2(20)-20=20

4(20)-10=70

20+70=90

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Verdich [7]

Answer:

6

Step-by-step explanation:6/3= 2

3 0
3 years ago
Which property is illustrated by the following statement if ABC=DEF and DEF=XYZ then ABC=XYZ
Harlamova29_29 [7]

Answer:

Transitive property of equality

Step-by-step explanation:

Let A be any non empty set and R is any subset of the Cartesian product A × A. Then, R is a relation on A.

The relation R is said to be a transitive relation if (a, b) ∈ R, (b, c) ∈ R, then (a, c) ∈ R.

It is given that ABC = DEF and DEF = XYZ, then ABC = XYZ.

This shows the transitive property of equality.

3 0
3 years ago
Read 2 more answers
What is the length of PC?
marshall27 [118]
<span>31 trillion kilometers or 19 trillion miles.</span>
7 0
3 years ago
What is the surface area of the triangular prism?
miv72 [106K]

Answer:

168ft

Step-by-step explanation:

1/2(6)(4)=12

1/2(6)(4)=12

(9)(5)=45

(9)(5)=45

(9)(6)=54

12+12+45+45+54=168

6 0
3 years ago
Given that a 12 foot long piece of steel pipe weighs 5 pounds per foot, how much does it weigh in kilograms per meter? 1 pound =
sdas [7]

Answer:

1 foot = 0.305 meters.

Convert 1 meter to feet:

1 meter = 1/0.305 = 3.28 feet

Find the weight in pounds per meter:

5 pounds x 3.28 feet = 16.4 pounds per meter.

Convert pounds per meter to kilograms per meter:

16.4 pounds x 0.454 kilograms per pound = 7.44 kg/m


4 0
3 years ago
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