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Rudiy27
3 years ago
10

MATH help right now plzzz HURRY NOOW NOW NOW 2 ATTACHMENTS GIVING A BRAINLIEST ANSWER ALL

Mathematics
2 answers:
Nikolay [14]3 years ago
3 0
First one is D
Second one is B.
STatiana [176]3 years ago
3 0
1  = 3rd one down.
2 = 2nd one down
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Solve the system of equations by substitution 3x+y=9z
poizon [28]

Answer:

x = 1.27

y = 5.18

Step-by-step explanation:

to solve this system of  equation by simultaneous equation we say that let

3x+y=9.............................. equation 1

-5x+2y=4 .......................... equation 2

from equation 1

3x+y=9.............................. equation 1

y = 9 -3x.............................. equation 3

substitute the value of y = 9 -3x into equation 2

-5x+2y=4 .......................... equation 2

-5x + 2( 9 -3x) = 4

-5x + 18 - 6x = 4

collect the like terms

18 - 4 = 6x + 5x

14 = 11x

divide both side by 11

14/11 = 11x/11

x = 14/11

x = 1.27

put the value of x = 1.27 into  equation 3

y = 9 -3x.............................. equation 3

y = 9 - 3( 1.27)

y = 9 - 3.82

y = 5.18

<em>to check if you are correct put the value of x and y into either equation 1 or equation 2.</em>

<em>3x+y=9.............................. equation 1</em>

<em>3( 1.27) + 5.18 = 9</em>

<em>3.81 + 5.18 = 9</em>

<em>9 = 9</em>

3 0
3 years ago
Solve for y. 8x+6y=10. Please show steps
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8x+6y=10
6y=10-8x
y=(10-8x)/6
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A garden table and a bench cost 607 combined. The garden table costs 43 less than the bench. What is the cost of the bench?
Paha777 [63]

Answer is 564

607-40=567

567-3=564


5 0
3 years ago
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What does 5 2/3 - 8 5/6 equal?
goblinko [34]

5 2/3 = 17/3 = 34/6

8 5/6 = 53/6

34/6 - 53/6 = -19/6 = -3 1/6


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3 years ago
Kalani had 3/5 pan of brownies. She sent 1/3 of
frozen [14]

I think its.......5/15=1/3

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3 years ago
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