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2 years ago

Solve the system of equations using the elimination method x+3y= -15 -3x+2y=23

Mathematics

1 answer:

lions [1.4K]2 years ago

6 0

Answer: i cannot see the equations so I can't solve it

Step-by-step explanation:

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How many quarters are thee in 4 1/2

Neko [114]

Hi there!

quarter:18

1.Find common denominator in 4 and 1/2:

$4=\frac{1}{4}$

$\frac{1}{2}=\frac{2}{4}$

2.Convert 4 2/4 into mixed number:

$4\frac{2}{4}=\frac{18}{4}$

3.Divide 18/4 by 1/4:

$\frac{18}{4}*\frac{1}{4}=18$

Therefore, there is 18 quarters in 4 1/2.

4 0

2 years ago

What are the coordinates of the midpoint of the line segment with the endpoints (2,-5) and (8,3)

Papessa [141]

Midpoint Formula: $(\frac{x_2+x_1}{2} ,\frac{y_2+y_1}{2} )$

Plug the coordinates into the midpoint formula and solve as such:

$(\frac{2+8}{2} ,\frac{-5+3}{2} )\\\\(\frac{10}{2} ,\frac{-2}{2} )\\\\(5,-1)$

Your midpoint is (5,-1).

7 0

2 years ago

Please need help on this one

kakasveta [241]

Answer:

25 degrees

Step-by-step explanation:

Use a trig. ratio

$sin^{-1}$ =3/7

Plug it into a calculator

$sin^{-1}$ =25.3

7 0

3 years ago

3х - 5 = -11 what is x

Gennadij [26K]

Answer:

-2

Step-by-step explanation:

Add 5 to both sides to get

3x-5+5=-11+5

and simplify to get

3x = -6

x = -2

7 0

3 years ago

Read 2 more answers

The expression 3(x-9) is equivalent to

Inessa05 [86]

The answer to this question would be D. 3(x)-3(9)

8 0

3 years ago

Solve the system of equations using the elimination method x+3y= -15 -3x+2y=23​

Solve the system of equations using the elimination method x+3y= -15 -3x+2y=23