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4 years ago

parallelogram ABCD angle B equals 5x and angle C equals 2x+12. What is the number of degrees in angle D

Mathematics

2 answers:

sergey [27]4 years ago

5 0

5x+2x+12=180
consecutive angle are supplementary
7x+12=180
7x=168
x=24
angle D=5x opposite angle are congruent
5x=120
Angle d=120
Hope it help:)

muminat4 years ago

3 0

I hope it cleared your doubt.

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7x+11 >5x-5 Can someone helpp

PSYCHO15rus [73]

Answer:

x>-8

Step-by-step explanation:

7x+11>5x-5

2x+11>-5

2x>-16

x>-8

the > sign acts like an equal sign :)

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4 years ago

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Four times the sum of a number and ter is the same as one-hundred added to eight

AfilCa [17]

Answer:

GIVE BRAINLIEST PLZ

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x = -15

Step-by-step explanation:

1) Four times sum of a number and 10

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2) is equal to 100 added to 8 times the number

4(x+10) = 8x + 100

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3 years ago

On Fridays, Jerry stops at Steak & Taco Shack before he goes home. This week

Vika [28.1K]

Answer:

Steak sandwich = x = 4

Cheese fries = y = 1.75

Taco salad = z = 2

Step-by-step explanation:

Let :

Steak sandwich = x

Cheese fries = y

Taco salad = z

This week:

x + 2y + 2z = 11.50 - - - - (1)

Last week :

2x + 3y + z = 15.25 - - - (2)

Two weeks ago :

x + 4y + z = 13 - - - - - (3)

Taking (1) and (2)

x + 2y + 2z = 11.50 ___(1)

2x + 3y + z = 15.25 ___(2)

Multiply (1) by 2 and (2) by 1 and subtract

2x + 4y + 4z = 23

2x + 3y + z = 15.25

_______________

y + 3z = 7.75 - - - - (4)

Taking (2) and (3)

2x + 3y + z = 15.25 - - (2)

x + 4y + z = 13 - - - - - (3)

Multiply (2) by 1 and (3) by 2 and subtract

2x + 3y + z = 15.25

2x + 8y + 2z = 26

______________

-5y - z = - 10.75 - - - - - (5)

Lets solve (4) and (5)

y + 3z = 7.75 - - - - (4) - - - multiply by 5

-5y - z = - 10.75 - - - - - (5) - - - multiply by 1

Then add the result :

5y + 15z = 38.75

-5y - z = - 10.75

____________

14z = 28

z = 28 / 14

z = 2

To find y ; put z = 2 in (4)

y + 3z = 7.75

y + 3(2) = 7.75

y + 6 = 7.75

y = 7.75 - 6

y = 1.75

From equation 3 ;

x + 4y + z = 13 - - - - - (3)

x + 4(1.75) + 2 = 13

x + 7 + 2 = 13

x + 9 = 13

x = 13 - 9

x = 4

Hence,

Steak sandwich = x = 4

Cheese fries = y = 1.75

Taco salad = z = 2

5 0

3 years ago

Rule y = x - 3 plz help me :(

Andru [333]

<h3>The answer!</h3>

<h3>Lets do the Solve the equetion first!</h3>

<h3>Solution:</h3><h3> $y = x - 3 \\ = y - x = - 3 \\ = - x = - 3 - y \\ = - x = - y - 3 \\ = x = y + 3$ </h3><h3>The answer is </h3><h3> $x = y + 3$ </h3><h3>꧁✰_______❀Edilyn❀_______✰꧂</h3><h3 />

#CarryOnLearning

#NoToCopyPaste

<h3>Correct me if im wrong</h3>

Its base on my understanding

<h3>For brainly user:</h3>

Just please, idols ,if we are going to answer questions here on brainly, don't do the ones from the internet, then just copy and paste

Just please, idols ,if we are going to answer questions here on brainly, don't do the ones from the internet, then just copy and paste You can search on the internet but make your own sentence okay? Thank you

Please dont delete this:((

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