3 years ago

Use substitution to solve the system of equations. x-2y=1 3x-6y=3

1 answer:

7 0

Change first equation
x - 2y = 1
add 2y to both side
x = 2y + 1
Plug into second equation
3(2y+1) - 6y = 3
Distributive property
6y + 3 - 6y = 3
y = 0, plug into first equation
x - 2(0) = 1, x = 1
Solution: x = 1, y = 0

You might be interested in

Write three fractions equivalent to -4/4

Aleonysh [2.5K]

-2/2, -3/3, -1/1

Work: -4 ×-2=8

6 0

3 years ago

Read 2 more answers

In a class 20 of students, 7 have a cat and

blsea [12.9K]

Answer:

$\frac{3}{20}$

Step-by-step explanation:

Since there are 20 students, this will be the denominator.

Now, to find how many students have a dog and a cat, you need to subtract all the numbers with 20. The leftover number will be the amount of students.

7+8+8=23

23-20=3

So, there are 3 students who have a dog and a cat.

So, the fraction will be $\frac{3}{20}$

8 0

2 years ago

Find the midpoint (6,3) and (14,9)

scoray [572]

Answer:

(10,6)

Step-by-step explanation:

The equation you would use to solve this is (x1+x2/2 , y1+y2/2) so when you plug in the numbers you get this (6+14/2 , 3+9/2) which eventually simplifies into (10, 6)

3 0

2 years ago

Segment AB is parallel to segment CD. Angle 1 is congruent to angle 2 because

Klio2033 [76]

I believe thr answer to be C.

6 0

3 years ago

Read 2 more answers

What is the solution to the system of equations below? y=-3x-9 and y=1/3x-39

Westkost [7]

Answer:

ddxsxssxsxsszxzxsxsxsxs