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Harlamova29_29 [7]
3 years ago
13

2x + 6y = -6

Mathematics
2 answers:
Kaylis [27]3 years ago
8 0

Answer:

-3 and 0

Step-by-step explanation:

You have to multiply the first one by -2 then add both of the equations!

I hope this helps!

loris [4]3 years ago
6 0

Answer:

(-3, 0)

Step-by-step explanation:

Solve by elimination. Multiply the first equation by -2 and then add the two equations together.

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A Principal needs 2 chaperones for every 25 students at the school dance how many chaperones does he need if 225 students are ex
Makovka662 [10]

Answer:

18 chaperones

Step-by-step explanation:

1. How many times does 25 go into 225

2. Whatever that number is multiply it by two

3. That is how you get the number of chaperones

4. THE END

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3 years ago
I need help!!!!!!!!!!!!!!!!!!!!!!!! ASAP
Black_prince [1.1K]

Answer:

x>4

Step-by-step explanation:

4 is less then x because, x is continuous.

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3 years ago
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The sale price of last year’s hottest game is 45% off the retail price. The game sold last year for $92.00. What is the sale pri
irina [24]

Answer: D $133.40

Step-by-step explanation:

SP $92.00

Discount = 45%

Sale price = 92 x 1.45 = 133.40

5 0
3 years ago
Dylan uses the expressions (x2 – 2x + 8) and (2x2 + 5x – 7) to represent the length and width of his bedroom. Which expression r
lawyer [7]

Answer:

2x⁴+x³-x²+54x+56

Step-by-step explanation:

Given the expression length of dylan room =  (x² – 2x + 8) and width = (2x² + 5x – 7), assuming the shap of the room is rectangular in nature, the formula for calculating area of a triangle is given as;

Area of rectangle = Length *Width

Area of the rectangle =  (x² – 2x + 8)(2x² + 5x – 7)

Area of the rectangle  = x²(2x² + 5x – 7) - 2x (2x² + 5x – 7) + 8(2x² + 5x – 7)

= (2x⁴+5x³-7x²)-(4x³+10x²-14x)+(16x²+40x-56)

expanding the bracket

= 2x⁴+5x³-7x²-4x³-10x²+14x+16x²+40x-56

Collecting the like terms;

= 2x⁴+5x³-4x³-7x²-10x²+16x²+40x+14x+56

= 2x⁴+x³-x²+54x+56

Hence, the expression that represents the area (lw) of Dylan's room is 2x⁴+x³-x²+54x+56

6 0
3 years ago
Read 2 more answers
Sariya and Kate went to lunch and their total bill was $36.96. If they
sasho [114]

Answer:

$ 44.352

Step-by-step explanation:

The bill of both of them was $36.96. And they gave a tip of 20%. So , the total amount paid will be ,

=> Amount = Bill + 20% of Bill

=> Amount = $36.96 + 20% of $ 36.96

=> Amount = $36.96 + 1/5 * $36.96

=> Amount = $36.96 + $7.392

=> Amount = $ 44.352

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