1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
scZoUnD [109]
4 years ago
13

How do you solve the system of equations 4 x − 2 y = 1 and -4 + 4 y = -2

Mathematics
1 answer:
Dmitrij [34]4 years ago
4 0

Answer: y= -2 - 1/2

Step-by-step explanation:

-4x -2y = 1

+4x       +4x

-2y = 4x + 1

/-2    /-2    /-2

y= -2 - 1/2

I think, i may be incorrect but the verbal explanation is; -4x is needed to be moved so you add 4x to both sides and 4x cancels out on the left which leaves -2y on the left (when it was moved "x" is always first). then divide all numbers by -2 to get y by itself. this gives you y= -2 - 1/2 if my calculations are correct.

You might be interested in
17:3 and 15:60 Equivalent ratios
inessss [21]

Answer:

Step-by-step explanation:

17:3 is already in lowest terms. 17:3 = 34:6, 51:9, etc.

15:60 = 1:4

5 0
3 years ago
5) A submarine is cruising at -40 meters (40 meters below the surface). It
Verdich [7]

Answer:

-25

Step-by-step explanation:

You begin with -40, then decrease by 20 so your new value is -60, then increase by 35 so your final value is -25m... hope this helps (:

5 0
4 years ago
PLEASE ANSWER QUICK
Kazeer [188]

Step-by-step explanation:

1. 3x + 4 = 19

3x = 15

x = 5

2. 7 + 2x = 15

2x = 8

x = 4

3 0
4 years ago
Today Alice is five times as old as Todd in 10 years she will only be 3 times as old what is there age now
Ugo [173]

Answer:

30

Step-by-step explanation:

3 0
3 years ago
Give the formula for the area of the following shapes. .
mamaluj [8]
Let's go shape by shape!

The area of a rectangle can be calculated as follows:

L * W = area where L = length and W = width

The area of a trapezoid can be calculated as follows:

\frac{( b_{1} +  b_{2})*H}{2} = area
where b1 and b2 = lengths of the base and H = height of the shape

The area of a parallelogram can be calculated as follows:

B * H = area where B = length of the base and H = height of the shape
3 0
3 years ago
Other questions:
  • Which is right??????
    5·2 answers
  • There are 4 boys and 2 girls from the seventh grade and 3 boys and 5 girls from the eighth grade on the soccer team. Coach Foste
    8·1 answer
  • Square root of 23 + 7
    5·1 answer
  • bookstore ordered 1,528 packs of pens and 1,823 packs of pencils at the prices shown. how much did the bookstore spend on pens?
    5·1 answer
  • Please help as soon as possible 50 points
    8·2 answers
  • Sheet 3
    9·1 answer
  • What is 62 1/2% of 10?
    9·1 answer
  • A factory is able to manufacture parts for a ceiling fan base on the data shown in the graph below how many parts can the factor
    7·1 answer
  • Solve for X<br><br> Please help
    10·1 answer
  • 1. Given the points P (1, - 4). Q (3,-2), R (-3,5), find the coordinates of the mid-points A and B of PO and PR respectively and
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!