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
BartSMP [9]
2 years ago
12

X = 2y-2 4x-9 = 11 Step by step please

Mathematics
1 answer:
Alex787 [66]2 years ago
4 0
Answer x=5, y= 3.5

Find y by plugging the x value into the 2nd equation
4(2y-2) -9=11
8y - 8 - 9 =11 combine like terms
8y = 28 divide both sides by 8
y = 3.5

Now find x
Plug your y value into first equation
X = 2(3.5) -2
X= 7-2
X=5

You can check your work by putting your x or y values into the equations

For the first equation
5=2(3.5) -2
5=5

For the second equation
4(5) -9 = 11
20 - 9 = 11
11 =11

You might be interested in
A new restaurant with 134 seats is being planned. Studies show that 62​% of the customers demand a​ smoke-free area. How many se
zzz [600]

Answer: 100

Step-by-step explanation:

Given : The total number of seats planned in new restaurant =134

The percentage of customers demand a​ smoke-free area = 62%

It can also be written as 62\%=\dfrac{62}{100}=0.62

The mean of this binomial distribution will be :-

\mu=np\\\\\mu=(134)(0.62)=83.08

Standard deviation:-

\sigma=\sqrt{np(1-p)}\\\\\Rightarrow\sigma=\sqrt{134(0.62)(0.38)}\approx5.6

Now, the number of seats should be in the​ non-smoking area in order to be very sure ​of having enough seating​ there :-

\mu+3\sigma=83.08+3(5.6)=99.88\approx100

4 0
3 years ago
I NEED HELP PLZ!!!!!! 20 POINTS
Amanda [17]

Answer:

1 is c

2 is d

3 is a

Step-by-step explanation:

Sorry it took a bit not pretty good at these but i used an app called desmos and it basically gives the answer

5 0
3 years ago
What is the value of s?3/8 (s 9 ) = −19?
denpristay [2]
S=<span>−<span>1.546727
hope this helps.</span></span>
8 0
3 years ago
Find the x intercept and the y intercept of -x+2y=8
vekshin1

Answer:

Hope this helps

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A waether forecast predicts a 30% chance of rain for each of the next 3 days. Describe a way to stimulate the chance that it wil
DerKrebs [107]
Using a binomial distribution considering there's a 30% chance it will rain on any of the three days: 

<span>The probability of it raining on 0 days is (1)(0.7)(0.7)(0.7) = 34.3%. </span>
<span>The probability of it raining on 1 day is (3)(0.3)(0.7)(0.7) = 44.1%. </span>
<span>The probability of it raining on 2 days is (3)(0.3)(0.3)(0.7) = 18.9%. </span>
<span>The probability of it raining on 3 days is (1)(0.3)(0.3)(0.3) = 2.7%. </span>

<span>There's a 65.7% chance that it will rain at least once over the three-day period.</span>
5 0
3 years ago
Other questions:
  • If f(x) = x - 5, then match each of the following.
    10·2 answers
  • The sides of each square measure 1 inch.. what is the perimeter and area
    9·1 answer
  • Figure H was reflected across linel resulting in figure H'. Describe a transformation that would map figure H' back onto figure
    8·1 answer
  • What percent of 78 is 27
    7·2 answers
  • What is the sign of the product (3)(–3)(–2)(4)?
    14·1 answer
  • Please help me on 68% on the number y is a 119
    15·1 answer
  • What is greater 10 5/9 or 10.57
    13·1 answer
  • Officials begin to release water from a full man-made lake at a rate that would empty the lake in 14 weeks, but a river that can
    8·1 answer
  • How many proportional relationships are shown in the coordinate plane below?
    10·1 answer
  • 4. Two unbiased coins are tossed. Calculate the probability that
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!