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
jenyasd209 [6]
3 years ago
13

Find x and y in the system of equations:

Mathematics
2 answers:
NemiM [27]3 years ago
7 0

Answer:

Y= -8

X= 3

Step-by-step explanation:

apply -(-a)=a rule

-23+4*8/3

-23+4*8=9

9/3

=3

2y-(3)=-19

y= -8

dedylja [7]3 years ago
7 0

Answer:

x = 3

y = -8

Step-by-step explanation:

We have two simultaneous equations:

3x + 4y = -23

2y - x = -19

Solve for y in the second equation.

2y = -19 + x

y = -19/2 + 1/2x

Put y as -19/2 + 1/2x in the first equation and solve for x.

3x + 4(-19/2 + 1/2x) = -23

3x + 2x - 38 = -23

5x - 38 = -23

5x = -23 + 38

5x = 15

x = 15/5

x = 3

Put x as 3 in the second equation and solve for y.

2y - 3 = -19

2y = -19 + 3

2y = -16

y = -16/2

y = -8

You might be interested in
Look at the to equations _3X + 6 = 21, _3X + 6 < 21. Which statement best describes the process used to solve the equations
Leto [7]

Answer:

What are the options?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Best estimate for 61/7
Ne4ueva [31]

I would say the best estimate would be 9 because the real answer is 8.71 and if you round that to the 1 place the answer would be 9.

8 0
3 years ago
Which price choice is the lowest price per ounce? HELP! I HAVE 2 HRS TO GET CORRECT ANSWER!
mina [271]

Answer:

B

Step-by-step explanation:

15 divided by 2.49 equals 0.166 (Approximately 17 cents/oz) whilst 20 divided by 3.32 equals 0.111 (Approximately 11 cents/oz).

8 0
3 years ago
You roll two fair dice, one green and one red. (a) Are the outcomes on the dice independent? Yes No (b) Find P(1 on green die an
navik [9.2K]

Answer:

1) yes ; 2) 1/36 ; 3) 1/36 ; 4) 1/18

Step-by-step explanation:

Given the following :

Two fair dice : 1 green ; 1 red

A) Are the outcomes on the dice independent:

Yes, becomes the outcome of the green dice does not have any effect on the outcome of the red dice.

B) Find P(1 on green die and 5 on red die).

Probability = (number of required outcome) / (total possible outcomes)

Total outcomes of a dice = 6

P(1 on green) = 1 / 6

P(5 on red) = 1/6

P(1 on green die and 5 on red die) :

(1/ 6) × (1/6) = 1/36

C) Find P(5 on green die and 1 on red die)

P(5 on green) = 1/6

P(1 on red) = 1/6

Find P(5 on green die and 1 on red die):

1/6 × 1/6 = 1/36

D) Find P((1 on green die and 5 on red die) or (5 on green die and 1 on red die))

P(5 on green die and 1 on red die) = 1/36

P(1 on green die and 5 on red die) = 1/36

P((1 on green die and 5 on red die) or (5 on green die and 1 on red die)) =

P(5 on green die and 1 on red die) + P(1 on green die and 5 on red die)

= (1/36 + 1/36) = 2 /36 = 1/18

8 0
3 years ago
What is the correct solution to the<br> inequality?
padilas [110]

Answer:

the correct answer is D

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Jim bought 20 rosebushes last week. the regular price is $5.00 per bush, but last week they were on sale at 2 for $8.50. how muc
    8·2 answers
  • How much does an 8.5lb gallon of milk weight in kilograms
    13·2 answers
  • Rewrite using a single exponent.<br> 53.53
    13·1 answer
  • Determine whether the underlined number is a statistic or a parameter. a sample of seniors selected and it is found that 25% own
    8·1 answer
  • Six customers enter a three-floor restaurant. Each customer decides on which floor to have dinner. Assume that the decisions of
    12·1 answer
  • Partial product of 1,262×3
    5·1 answer
  • You are planning to evaluate the mean of a single continuous variable from a study with a sample of n =10 using the t statistic.
    5·1 answer
  • Figure ABCD is a rhombus.
    10·2 answers
  • Will give brainlyist to first answer
    15·2 answers
  • The measures of the angles of a triangle are shown in the figure below. solve for x.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!