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Alinara [238K]
3 years ago
12

Solve using elimination. –9x + 9y = 18 –6x + 9y = –12

Mathematics
2 answers:
Arada [10]3 years ago
8 0
You can multiply either the top or bottom equation by -1 so lets say you apply it to the bottom equation it’ll look like this:

-9x + 9y = 18
6x - 9y = 12

then the +9y and -9y will cancel out

-9x = 18
6x =12

then you add the two equations together

-3x = 30

divide both sides by -3

x = -10
ahrayia [7]3 years ago
5 0
Answer:
x = -10 and y = -8
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pishuonlain [190]
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3 0
3 years ago
(x)+(x+1)+x+2)+(x+3)=216 find 4 consecutive odd integers
lubasha [3.4K]
If it were four consecutive odd numbers then it would be x, x+2, x+4, x+6 and not x, x+1, x+2, x+3.  That is just four consecutive integers.

So if you want four consecutive ODD numbers then:

x+x+2+x+4+x+6=216

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x=51 so the odd integers would be:

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7 0
3 years ago
Read 2 more answers
Which expression represents the area of the base of the cone? A cone with diameter 12 inches, height 8 inches, and slant height
Wewaii [24]

Answer: (pi) (6 squared)

Step-by-step explanation:

Hi, the base area of a cone is a circle, so, to answer this question we have to apply the next formula:

Area of a circle: (pi) radius^2

The diameter (d) of a circle is equal to: 2 radius

So:

D = 2r

Replacing with the value given:

12 =2r

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Back with the Area formula:

A = (pi) 6^2

Feel free to ask for more if needed or if you did not understand something.  

8 0
4 years ago
Please helppp
Gre4nikov [31]

Answer:

6

Step-by-step explanation:

4 0
3 years ago
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a man has been driving a second hand car for the past four years. over these four years he managed to save 16% as a deposit of t
Ksenya-84 [330]

Answer:

$120,000

Step-by-step explanation:

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We simply multiply these two to each other so that the saving amount could come

7 0
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