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igor_vitrenko [27]
3 years ago
10

ABCD is a quadrilateral Calculate the value of x A=2x B=90 C=x D=3x

Mathematics
1 answer:
Sedaia [141]3 years ago
7 0

Answer:

X=45

Step-by-step explanation:

Sum of all angles is 360, so we have

2x+90+x+3x=6x+90=360

6x=270

X=45

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If EF=2x-12, FG= 3x-15, and EG=23, find values of x, EF, and FG
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we have that


*-------------------------*--------------------------------*

E                            F                                     G


EF=2x-12

FG= 3x-15

EG=23


we know that


EF + FG = EG


so

[2x - 12] + [3x - 15] = 23 simplify

5x - 27 = 23 add 27 to both sides

5x = 50 divide both sides by 5

x = 10

EF=2x-12-------> EF=2*10-12-------> EF=8

FG= 3x-15------> FG=3*10-15------> FG=15



therefore


the answer part a) is

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the answer part b) is

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the answer part c) is

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Step-by-step explanation:

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Let's form the difference of the two expressions and see what we can learn.

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Hanna is driving 480 miles. She has already driven 312 miles. What percent of her trip has she completed?
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Step-by-step explanation:

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Step-by-step explanation:

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