MATHEMATICS HIGH SCHOOL

3x + y = 3x + y = 2

Solve the system of equations.

A) x = 1/2, y = 3

B) x = 3, y = 1/2

C) x = 1/2, y = 3/2

D) x = 3/2, y = 1/2

Answers

Answer 1
Answer: If you would like to solve the system of equations, you can do this using the following steps:

3x + y = 3
x + y = 2 ... y = 2 - x
_________________
3x + y = 3
3x + 2 - x = 3
2x = 3 - 2
2x = 1
x = 1/2

y = 2 - x = 2 - 1/2 = 1 1/2 = 3/2

(x, y) = (1/2, 1 1/2) = (1/2, 3/2)

The correct result would be C) x = 1/2, y = 3/2.

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  • y= -3/1x+1

Holly has watched 39% of a movie that is 122 minutes long. Which is the best estimate for the number of minutes of the movie that Holly has watched? 36 minutes 39 minutes 48 minutes 52 minute

Answers

Answer:

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Step-by-step explanation:

Answer:

Step-by-step explanation:48

49 to the power of 1/2 in radical form

Answers

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How many 1-inch cubes do you need to fill a cube that has an edge length of 1 foot?

Answers

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Evaluate C(7, 5).

21
42
1,008

Answers

Answer:

21

Step-by-step explanation:

This is a combination of 7 objects taken 5 at a time

nCr = n! / r! * (n - r)!

7C5 = 7! / (5! (7-5)!)

       = 7! /(5! 2!)

       = (7*6*5*4*3*2*1)

          -----------------------

          5*4*3*2*1  * 2*1

Canceling

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Solve
8 - (2x - 9) = 17-24

Answers

Answer:

x=12

Step-by-step explanation:

8-(2x-+9)=17-24

8-2x=17-24-9

8-2x=-7+-9

8-2x=-16

-2x=-16-8

-2x=-24

x=-24/-2

x=12
8-(2x-9)=17-24
8 - 2x -+9 = -7
-2x+17=-7
-17 -17
-2x = -24
/-2. /-2

x = 12
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