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
Olin [163]
3 years ago
15

Solve the system of equations. -5x+2y=9 y=7x

Mathematics
2 answers:
posledela3 years ago
6 0

Answer:

x = 1

Step-by-step explanation:

Substitute y with 7x.

-5x + 2(7x) = 9

Solve parentheses.

-5x + 14x = 9

Combine like terms.

9x = 9

Now solve the equation.

9x = 9

/9     /9

-----------

x = 1

Law Incorporation [45]3 years ago
4 0

Answer:

uuuuuuuuuuum

Step-by-step explanation:

maybe it's...


You might be interested in
Given f(x)=-2x-1, solve for x when f(x)=-7
Svetlanka [38]

Answer:

The answer is -15.

Step-by-step explanation:

1. 2x - 1

2. 2(-7) - 1

3. (-14) - 1

4. -15

By plugging in our x value, we are able to use PEMDAS to  multiply 2 and the value of x and then, we subtract 1 from the value we got from step 3 to get -15.

5 0
3 years ago
The cumulative distribution function f(x) of a discrete random variable x is given by f(0) =. 30, f(1) =. 70, f(2) =. 90 and f(3
Lisa [10]

Correlation between x & y is 0.6125.

In probability theory and statistics, the cumulative distribution function of a real-valued random variable X, or simply the distribution function of X weighted by x, is the probability that X takes a value less than or equal to x.

The cumulative distribution function (CDF) of a random variable X is defined as FX(x)=P(X≤x) for all x∈R. Note that the subscript X indicates that this is the CDF of the random variable X. Also note that the CDF is defined for all x∈R. Let's look at an example.

Learn more about cumulative distribution here: brainly.com/question/24756209

#SPJ4

7 0
1 year ago
Diana can type 100 form letters
satela [25.4K]

Answer:

it will take 3 hours long

8 0
3 years ago
vlad a economiit o suma de bani.A cheltuit 20 lei pentru felicitari apoi tatal i-a dublat suma. A cheltuit 40 lei pe martioare a
timurjin [86]

He had saved 320 initially

Step-by-step explanation:

Let the amount he saved be 'a'

Amount spent = 20 + 40 + 30

= 90

His grand father gave 50

At the end he has 280

280 = a - 90 +50

a = 280 -50 +90

= 320

He had saved 320 initially

7 0
4 years ago
Sybil has 1/2 of pizza left over. She wants to share the pizza with 3 of her friends. What fraction of the original pizza does s
Vadim26 [7]

Answer:

1/6

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the equation. −4x+3=19
    15·2 answers
  • I don’t understand this question what so ever
    15·1 answer
  • W A field is shaped like the figure shown What is the area of the field Use 3.14 for 8 m
    12·1 answer
  • Regan ran a total of 12 miles over the course of three track practices. How many miles would Regan have run after five practices
    8·2 answers
  • In a different plan for area​ codes, the first digit could be any number from 0 through 6 , the second digit was either 7 or 8​,
    10·1 answer
  • The population of a town is 8600 and is growing 3% a year. What will the population be after 3 years
    13·2 answers
  • Auberys dinner cost $85 she tips the waitstaff 30% for excellent service. HOW much does aubery tip the waitstaff​
    10·2 answers
  • The storage box for a flag is in the shape of a triangular prism. What is the surface area of the box?
    14·1 answer
  • I need help with those 2
    6·1 answer
  • A watering can hold 12 1/2 litres.it’s filled 11 times from a tank containing 400 litres.how much water is left in the tank
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!