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andrezito [222]
3 years ago
8

Solve the system using the method of your choice: y = 2x – 2

Mathematics
1 answer:
Masteriza [31]3 years ago
7 0
Y = 2x - 2

x + 3y = 15

I'll do substitution by solving for y:

y = 2x - 2

Solve for y for the second equation:

y = 5 - x/3

Substitute:

2x - 2 = 5 - x/3

Add x/3 to both sides:

7x/3 - 2 = 5

Add 2:

7x/3 = 7

Multiply by 3:

7x = 21

Divide by 7:

x = 3

Substitute x in for one of the original equations:

y = 2(3) - 2

y = 6 - 2

y = 4

The solution set is (3, 4).
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Help with the question please​
galina1969 [7]

Step-by-step explanation:

since all 4 sides are equal in length, the figure is a square.

let the length of the square be lm.

529 = l x l

l = 23m

perimeter = 23 x 4 = 92m

Topic: mensuration

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5 0
3 years ago
A system of equations is shown below.
prisoha [69]

Given:

The system of equations is

y=1.5x-3

y=1.5x+4

To find:

The true statement about the given system of equations.

Solution:

The slope intercept form of a line is

y=mx+b

Where, m is the slope and b is the y-intercept.

We have,

y=1.5x-3

y=1.5x+4

On comparing these two lines with slope intercept form, we get

m_1=1.5,b_1=-3

m_2=1.5,b_2=4

Since the slopes of the lines are equal but the y-intercepts are different, therefore, the two lines are parallel and the system has no solution.

Therefore, the correct option is A.

5 0
3 years ago
Write this number in standard form.
zzz [600]

Answer:

10,014,070

Step-by-step explanation:

6 0
3 years ago
Pls help <br> -21 ÷ b = 3, b = ? and uhm this one too<br> 3c + 1 = 10, c = ?
AfilCa [17]

Answer:

-21 ÷ b = 3, b =        b=-7

3c + 1 = 10, c =        c=1/7

Hope this helps!

5 0
3 years ago
container a and b hold 11,875 liters. container b holds 2,391 more liters than container a. how much is in container a?
SIZIF [17.4K]
9484 liters in container A
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