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
ohaa [14]
3 years ago
8

Find a solution to the following system of equations. –5x + y = –5 –4x + 2y = 2

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
8 0
-5x + y = -5.....multiply by -2
-4x + 2y = 2
---------------
10x - 2y = 10 (result of multiplying by -2)
-4x + 2y = 2
-----------------add
6x = 12
x = 12/6
x = 2

-5x + y = -5
-5(2) + y = -5
-10 + y = -5
y = -5 + 10
y = 5

solution is (2,5)

You might be interested in
A recent survey estimated that 19 percent of all people living in a certain region regularly use sunscreen when going outdoors.
serg [7]

The correct option is: (E) It is plausible that the percent of all people living in the region who regularly use sunscreen is 18.5%.

<u>Step-by-step explanation:</u>

The margin of error is a statistic expressing the amount of random sampling error that occurred due to miscalculation and survey results. The margin error is usually a small amount of error.

Generally 5% of margin of error is common and acceptable. When the percentage of the margin of error increases, the confidence in the report result will be reduced.

The recent survey reveals that 19% of the people living in a certain region regularly use sunscreen when going outdoors. The permissible margin of error in this survey is 1%.

Probably the percentage of people using sunscreen in the particular region will be <u>18.5%. </u>

5 0
3 years ago
Expand to write an equivalent expression -1/2 (-6x+8y) <br><br>(Pleasee help i need an answer rqqqq)
Alik [6]

Answer:

-  \frac{1}{2} ( - 6x + 8y) \\  =  \frac{1}{2} (6x - 8y) \\  = 3x - 4y

6 0
3 years ago
Would the -5 go to the left or the right on the number scale?
jeyben [28]

The number -5 would go to the left of a number scale. Typically because all negatives move to the left of zero on the number scale.


5 0
3 years ago
The original price of a pair of shoes is $42. The sale price is 20% off the original price. What is the amount off the original
GREYUIT [131]

Answer:

a) What is the amount off the original price?

= $8.4

b) What is the new price for the pair of shoes?

= $33.6

Step-by-step explanation:

a) What is the amount off the original price?

We are told that:

The sale price is 20% off the original price.

Original price = $42

Hence:

$42 × 20%

$42 × 20/100

= $8.4

b) What is the new price for the pair of shoes?

The new price =

0riginal price - Amount off the original price

= $42 - $8.4

= $33.6

The original price = $33.6

8 0
3 years ago
The product of nine, y and x not simplified.​
Ronch [10]

Answer:

9yx

Step-by-step explanation:

product means multiply.

nine, y and x

9yx

3 0
3 years ago
Other questions:
  • N+(-n) = 3+ 15<br><br> Solve
    10·1 answer
  • Which equation can be used to find the side lengths if the longest side measures 6.2cm?
    11·1 answer
  • Include all of your work in your answer. Submit your solution.<br><br> P = 3r + 2s ; for s
    9·1 answer
  • Johann baked 24 cookies for a picnic with his friends. Of the 10 friends he invited, 7 friends were able to attend the picnic. I
    6·1 answer
  • Find the radius of a circle with an area of 78.5 cm2?
    7·1 answer
  • The square root of 136 is between which two whole numbers?
    9·2 answers
  • 760 hundreds using place-value chart
    7·1 answer
  • Multiply -90/11 by -55/72 with explanation...
    15·2 answers
  • In a box containing 20 cans, 12 of the cans contain vegetables. In the box, 5 of the cans are dented, with 2 of the dented cans
    9·1 answer
  • This is the question
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!