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Nastasia [14]
2 years ago
7

(9x-5)°+(6x+20)°=180

Mathematics
1 answer:
Radda [10]2 years ago
4 0

Answer:

67

Step-by-step explanation:

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2x+3y=0 and x+2y=-1 <br> Solve by substitution
dmitriy555 [2]

Answer:

The solution of the given equations is (-3,2)

Step-by-step explanation:

<u>Step:1</u>

The Given equations are 2 x+3 y=0 .......(1)

                                          x+2 y-1 =0.........(2)

<u>Step 2:-</u>

Solving<u> </u>both equations by using substitution method

multiply equation (2) with number '2' ,  

2 x+4 y-2=0.......(3)

subtracting the equations (1) and (3) and cancelled 'x' terms

we get 3y-4y=0-2

y=2

<u>Step 3:</u>-

substitute y= 2 in equation (1) we get

2 x+3 y=0

2 x+3(2)=0

2 x=-6

x=-3

<u>Final answer</u>:-

The solution of the given equations is (-3,2)

8 0
4 years ago
A jar can hold 34 of a pound of flour. Austin empties 12 of a pound of flour into the jar. What fraction of the jar is filled? E
forsale [732]
22/34 because 34-12=22 and the total is 34
22/34 is your answer
3 0
3 years ago
Need some help with math!! pLZ
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It's b. An empty circle refers to greater than.
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4 years ago
Tyrone has 8 coins with a total value of 55 cents. The coins are nickels and dimes only. How many nickels does Tyrone have?
amm1812

4 are dimes and 3 are nickles

7 0
4 years ago
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25 POINTS HELPPPP!!! solve question 1, 2, 7, 8 on the picture please
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1. x=12

2. y= -5

7. y= -4

8. x= - 3/10
7 0
3 years ago
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