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
KatRina [158]
3 years ago
6

Solve each system of equations 2x- 5y = 7 3x - y = -9

Mathematics
1 answer:
Darina [25.2K]3 years ago
8 0

Answer:

x = -4; y = -3

Step-by-step explanation:

2x - 5y = 7

3x - y = -9

Rewrite top equation. Multiply both sides of bottom equation by -5. Add equations. This eliminates y, and we solve for x.

         2x - 5y = 7

(+)   -15x + 5y = 45

----------------------------

      -13x         = 52

Divide both sides by -13.

x = -4

Substitute -4 for x in the first original equation and solve for y.

2x - 5y = 7

2(-4) - 5y = 7

-8 - 5y = 7

-5y = 15

y = -3

Answer: x = -4; y = -3

-5 =

You might be interested in
How to solve eight more than the difference of four and 3
umka2103 [35]
4-3=1
1+8=9
The answer is 9
4 0
3 years ago
128 ounces is how many pounds​
LiRa [457]

Answer:

An ounce is a unit of weight equal to 1/16th of a pound or about 28.35 grams.

A pound is a unit of weight commonly used in the United States and the British commonwealths. A pound is defined as exactly 0.45359237 kilograms.

Step-by-step explanation:

128 Ounces =

8 Pounds

6 0
3 years ago
Read 2 more answers
write the equation if the line in slope- intercept form that passes through (7,-4) with a slope of -1.
QveST [7]

9514 1404 393

Answer:

  y = -x +3

Step-by-step explanation:

The point-slope form can be a useful place to start.

  y -k = m(x -h) . . . . . line with slope m through point (h, k)

You require the line ...

  y -(-4) = -1(x -7)

  y = -x +7 -4 . . . . . . . . eliminate parentheses, add -4

  y = -x +3 . . . . . . . . . slope-intercept form

7 0
3 years ago
Larry made 5 batches of punch. Each batch ises 24 fluid ounces of lemon juice and 5 pints of orange juice. If each serving is 1
kkurt [141]

Answer:

65 servings

Step-by-step explanation:

Larry made 5 batches of punch.

In each batch, she uses the amount of lemon juice = 24 fluid ounces

and the amount she uses of orange juice = 5 pints

Since 1 pint = 16 fluid ounces

∴ 5 pints = 16 × 5 = 80 fluid ounces

Total quantity of punch in each batch = 24 + 80

                                                              = 104 fluid ounces

Total quantity of punch in 5 batches = 104 × 5

                                                             = 520 fluid ounces

If each serving is 1 cup.

and 1 cup = 8 ounces

He made the number of servings all together = \frac{520}{8}

                                                                           = 65 cups

He made 65 servings all together.

8 0
3 years ago
What is the domain of the square root function graphed below?
OLEGan [10]
The answer is X >= 0
3 0
2 years ago
Other questions:
  • Please solve: 26) -96 = 4(6n - 6)
    14·2 answers
  • 1.) A 20° sector in a circle has an area of 21.5π yd².
    9·1 answer
  • Who will have the most money in May 2024
    5·1 answer
  • True or False
    15·2 answers
  • Plz help<br><br> x-2 1/4=1/18
    9·2 answers
  • The Lake Smith basketball team had a team picture taken of the players, the coaches, and the trophies from the season. The pictu
    11·2 answers
  • PLS HELP easy math PLEEEEEEEEEEEEEEEEEAASSSSSSSSSSSSEEEEEEEEEEEE
    5·1 answer
  • –41 – y = −17 linear equations by elimination ​
    7·2 answers
  • Which best represents the commutative property of addition?
    13·2 answers
  • Please help me statistic and probability​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!