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
NISA [10]
3 years ago
11

11. Find a solution to the following system of equations. −5x + 2y = 9 3x + 5y = 7 (–9, 7) (0, 1) (–1, 2) (1, 7)

Mathematics
2 answers:
Nutka1998 [239]3 years ago
7 0

Answer:  -1,2

Step-by-step explanation: SImplify each of the equactions and get your answer

Zinaida [17]3 years ago
6 0

Answer:

it would be (-1,2)

You might be interested in
the length of a soccer pitch is 20 m less than twice its width. the area of the pitch is 6000m^2. find its dimensions.
Setler79 [48]
X=width of a coccer pitch
2x-20=length of a soccer pitch
Area (rectangule)=length x width
We suggest this equation:
x(2x-20)=6000
2x²-20x=6000
2x²-20x-6000=0
x²-10x-3000=0
We solve this quadratic equation:

x=[10⁺₋√(100-4*1*-3000)]/2=[10⁺₋√(100+12000)]/2=
=(10⁺₋110)/2
we have two solutions:
x₁=(10-110)/2=-50, invalid solution.
x₂=(10+110)/2=60

x=60
2x-20=2(60)-20=120-20=100

Solution: the length is 100 m, and the width is 60 m.

To check:
Area=100 m*60 m=6000 m²
The twice of width is =2(60 m)=120 m,
20 m less than twice its width is: 120 m-20 m=100 m=the length.


8 0
3 years ago
Attachment Mathswatch!!
Travka [436]

Answer:

y=x-1

Step-by-step explanation:

Gradient=1

Rise/run=1/1=1

y=x+c

y intercept=-1

y=x-1

7 0
3 years ago
Question 9 of 10 Which of these groups of values plugged into the TVM Solver of a graphing calculator will return the same value
hodyreva [135]

The TVM solver is a tool found in graphing calculators, that solve Time Value of Money problems.

The group of values that will return the same value as the given expression is;

D. N = 24; I% = 3.6; PV =; PMT = -415; FV = 0; P/Y = 12; C/Y = 12; PMT :END

<h3>What is Present Value?</h3>

Present value (PV) formula finds application in finance to calculate the present day value of an amount that is received at a future date.

In the TVM solver, we have;

I = The annual percentage rate

N = n × t

t = The number of years

PV = Present value

PMT = Payment

P/Y = Number of payments per year = n

C/Y = Number of compounding periods per year = n

The formula for monthly payment is presented as follows;

P = \frac{M[(1+r/n)^{nt} - 1]}{(r/n)(1+r/n)^{nt}}

M = \frac{P.(r/n)(1+ r/n)^{nt} }{(1+ r/n)^{nt} - 1}

Therefore, we get;

Where;

M = PMT = -415

P = PV

r = I

P/Y = n = 12

Therefore;

0.003 = I/12

I = 0.003 X 12 = 3.6%

N = n X t = 24

The value of the equation is the present value, PV = ?

When payment are made based on the PV, we have FV = 0

The group of values the same value as the expression

P = \frac{(415)[(1+0.003)^{24}-1]}{(0.003)(1+0.003)^{24}}

when plugged into the TVM solver of a calculator is;

D. N = 24; I% = 3.6; PV =; PMT = -415; FV = 0; P/Y = 12; C/Y = 12; PMT :END

Learn more about Present Value Solver from:

brainly.com/question/1759639

#SPJ1

7 0
2 years ago
You are given a bag with 8 green marbles, 6 blue marbles, 14 yellow marbles, and 12 red marbles. Find the theoretical probabilit
AysviL [449]
A) 8/40 = 1/5
b) 12/40 or 6/20
c) 26/40 or 13/20
6 0
3 years ago
What is X divided by 4+11 that is equal to or greater than eight
irina [24]

Answer:

greater than or equal to 120

Step-by-step explanation:

4+11=15

x is over 15

8*15=120

therefore x must be greater than or equal to 120

3 0
4 years ago
Read 2 more answers
Other questions:
  • Which situation is best represented by the following equation?<br> 45w + 123.95<br> 753.95
    5·1 answer
  • Can you use the law of syllogism and why?
    14·1 answer
  • Correct answer will get brainliest!
    11·1 answer
  • Select the choice which shows all of the diagonals in this polygon and tells how many there are.
    7·2 answers
  • WILL GIVE BRAINLIEST!!
    12·1 answer
  • What is the polynomial 3y2 + (y + 7)2 – 15 after it has been fully simplified and written in standard form?
    9·1 answer
  • PLEASE I NEED HELP ASAP I WILL GIVE POINTS TO EVERYONE WHO GIME VE THE RIGHT ANSWER
    7·1 answer
  • I will give a branliest to the first person answer it
    12·2 answers
  • The temperature dropped from 75 degrees to 50 degrees. What was the percent decrease in the temperature?
    12·1 answer
  • ANSWER THIS PLEASE !!!!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!