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Lina20 [59]
3 years ago
15

use the elimination method to solve the system of equations. choose the correct ordered pair x-y=2 2x+3y=14

Mathematics
1 answer:
son4ous [18]3 years ago
4 0

Answer:

x = 4

y = 2

Step-by-step explanation:

x - y = 2

   x = 2 + y

2x + 3y = 14

  2(2 + y) + 3y = 14

  4 + 2y + 3y = 14

  4 + 5y = 14

  5y = 10

   y = 2

x - y = 2

  x - 2 = 2

  x = 4

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vivado [14]

Answer: (3x+2)(x+4)

Step-by-step explanation:Explanation:

3x2+10x−8

first multiply

3

with −8

and we get −24

then find two numbers that if we add or subtract we get

+10

and if we multiply we get

−24

and the numbers are

+12

and

−2

then we place those numbers as follow :-

3x2+12x−2x−8

then we group them

(3x2+12x)(−2x−8)

now take the common factor out.3x(x+4)−2(x+4)

then group the numbers outside of the brackets

(3x−2)(x+4)

3 0
2 years ago
A cube has an edge length of 4 inches. You double the sides lengths. How many times greater is the volume of the new cube?
N76 [4]
8 times since 4x4x4=64 and 8x8x8=512
so 512/64 equals 8 so it's 8 times greater


<span>-Hope this helps :)</span>
3 0
3 years ago
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A recipe for cake needs 3/4 if a cup of milk. you are making 1/2 of the recipe.his much milk do you need
r-ruslan [8.4K]
I would say it's 3/8 of a cup because if you multiply 3/4 by 2 it would be 6/8. It's the same amount but just a different measurement. Now just take 3 away from 6/8 and you have 3/8 which is half of 3/4.
4 0
3 years ago
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The number of caps a new online store sells increases by a factor of 4 each month. The function f(x)=4^x represents the number o
sladkih [1.3K]

For this case we have the following variables:

x: number of months

f (x): number of caps sold

The function that models the problem is given by:

f (x) = 4 ^ x

By the time the store sells 64 caps we have:

4 ^ x = 64

From here, we clear the number of months:

log4 (4 ^ x) = log4 (64)\\x = log4 (64)\\x = 3

Answer:

the store sells 64 caps in 3 monts

A. month 3

8 0
3 years ago
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Alex Ar [27]
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3 years ago
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