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Vedmedyk [2.9K]
3 years ago
12

Y=-2x-6 Y=x+9 Elimination method

Mathematics
1 answer:
pogonyaev3 years ago
7 0
So we have
y=-2x-6
y=x+9
elimination
multiply second by e
2y=2x+18
just add them

y=-2x-6
<u>2y=2x+18  +
</u>3y=0x+12
3y=12
divide by 3
y=4
subsitue
4=x+9
subtract 9
-5=x

x=-5
y=4
<u />
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Help!! Please photo art attached below
lubasha [3.4K]

Answer:

C

Step-by-step explanation:

180 degrees + 30 =210 degrees

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4 0
3 years ago
Simplify. –24 – 8 ÷ (–4) <br> A. –22 <br> B. –8 <br> C. –26 <br> D. 8
pishuonlain [190]
Hi there! The answer is A. - 22 

We can use PEMDAS to find our answer, which says divide first (before adding).

- 24 - 8 : (-4) = 

Since we divide two negative numbers, we end up with a positive value.
- 24 + 2 = 

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8 0
3 years ago
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Identify which shapes are similar to shape A and which are not.
Georgia [21]

Answer:

2 and 3 look similar to A

1, 4, 5 and 6 are not similar to A .

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At a local prechool there i a ratio of 3 boy to every 4 girl. If there are 245 total prechooler how many are boy
Georgia [21]

If there are 245 total preschoolers, there will be 105 boys.

  • What is unitary method?
  • The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. What can be values and units.
  • Let's say you go to the store to buy six apples. You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples.
  • Recognizing the units and values is crucial when using the unitary technique to a problem.
  • Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things. We are aware of the quantity of apples and the amount of money in the aforesaid problem.

acc to our question-

  • Fraction of boys = 3/7
  • Fraction of girls = 4/7
  • Total number of students = 245
  • The number of boys will be:
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  • = 105 boys

Therefore, there are 105 boys in the school.

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brainly.com/question/24587372

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3 0
1 year ago
Find the nth term<br><br> 1, 5, 9. 13, 17
mojhsa [17]

a1 = 1 and d = 4

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8 0
3 years ago
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