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
Anika [276]
1 year ago
15

Solve this system of linear equations. Separate

Mathematics
2 answers:
AleksAgata [21]1 year ago
5 0
  • 7x=-63-11y-(1)
  • 8x=93+11y--(2)

Adding both

  • 15x=30
  • x=2

Putting in second one

  • 8(2)=93+11y
  • 11y=16-93
  • 11y=-77
  • y=-7
Nadusha1986 [10]1 year ago
3 0

Answer:

2, -7

Step-by-step explanation:

<h3><u>Question</u></h3>

Solve the system of linear equations:

  • 8x = 93 + 11y
  • 7x = -63 - 11y

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

<h3><u>Solution</u></h3>

Add the equations together to eliminate y:

     8x = 93 + 11y

+    7x = -63 - 11y

    -------------------

    15x = 30

⇒ x = 30 ÷ 15

⇒ x = 2

Now substitute the found value of x into one of the equations and solve for y:

⇒ 7x = -63 - 11y

⇒ 7(2) = -63 - 11y

⇒ 14 = -63 - 11y

⇒ 11y = -63 - 14

⇒ 11y = -77

⇒ y = -77 ÷ 11

⇒ y = -7

Therefore, x = 2 and y = -7

You might be interested in
Describe how the graph of y= x2 can be transformed to the graph of the given equation.
Stels [109]
Assume you mean the transformation from x^2 to (x-10)^2 + 8

Then, you first shift x^2 10 units right, you will get (x-10)^2

And, shift (x-10)^2 8 units upward, you will get (x-10)^2 + 8
6 0
2 years ago
There is a 0.9968 probability that a randomly selected 50 year old female lives through the year (based on data from the US depa
SashulF [63]

There is a 0.9968 probability that a randomly selected 50-year-old female lives through the year (based on data from the U.S. Department of Health and Human Services).

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

A Fidelity life insurance company charges $226 for insuring that the female will live through the year. If she does not survive the year, the policy pays out $50,000 as a death benefit.

From the perspective of the 50-year-old female, what are the values corresponding to the two events of surviving the year and not surviving?

----

Ans: -226 ; 50,000-226 = 49774

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

If a 50-year-old female purchases the policy, what is her expected value?

 

WORK TRIED:

In the event she lives, the value is -$226. In the event she dies, the value is $49,774.

----

E(x) = 0.9968*(-226) + 0.0032(49774) = -$66

==================================================

Cheers,

ROR

3 0
3 years ago
Find the points on the curve y = 2x3 + 3x2 − 12x + 7 where the tangent line is horizontal.
kramer
Try this solution.Answers are marked by green.
More details are on the attached graph.

6 0
3 years ago
How much would $500 invested at 6% interest compounded monthly be worth after 4 years? Round your answer to the nearest cent
Rama09 [41]
1) Compound interest formula:
A = P(1+ \frac{r}{n}) ^{nt}**<span>
**A = amount, P = principal amount, r = rate, n = # of times interest is compunded every year, t = time(in years)
2) Plug numbers in
</span>A = (500)(1+ \frac{0.06}{12}) ^{(12)(4)}
3) Solve
A = 635.24458054

Hope this helped! Good Luck!
7 0
3 years ago
Solve by factoring<br> p² + 16p +64 = 0<br> i like highkey don’t know how to do this
bonufazy [111]

Answer:

-8

Step-by-step explanation:

When you factor, you just find two numbers that add to be the first number (16) and multiply to be the second number (64). 8 and 8 both do this. So when we factor, we also add the variable into each equation because it also has been divided into two equations, and we get: (p + 8)(p +8). Notice that the equations are "+8" and not "-8" because two +8s add to give us a +16 and multiply to give us a +64. After that, we just solve the two equations to find the solutions. Subtract 8 from each equation (we do the opposite operation because 8 is positive) to get -8. Because the answer for each equation is the same our answer is -8.

7 0
3 years ago
Read 2 more answers
Other questions:
  • The quadratic x^2-6x+66 can be written in the form (x+b)^2+c, where b and c are constants. What is b+c?
    6·1 answer
  • WLD Incorporated, a national data-collection agency, estimates that 60% of all customers at home warehouse stores (in the United
    11·1 answer
  • Pictures, x
    9·1 answer
  • Daniel has $600 in a checking account, has $12,000 in a savings account,
    13·2 answers
  • TotoToday everything at a store is on sale. The store offers a 20% discount. The regular price of a T-shirt is $18. What is the
    15·1 answer
  • Choose an equivalent ratio. 5:7<br><br> A) 7:9<br> B) 10:14<br> C) 14:15<br> D) 15:23
    12·2 answers
  • Solve y3 = 64.
    7·1 answer
  • The floor of a new planetarium is a circle with a 13-yard diameter.A stage will occupy a quarter circle section of the floor.The
    9·1 answer
  • Solve for x. round all answers to the nearest tenth. 22 54
    5·1 answer
  • Mr. George is walking while wearing a 50-pound backpack. He walked 3 1/4 miles before taking a break. He then walked an addition
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!