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
andrezito [222]
2 years ago
7

Given that

Mathematics
1 answer:
Crazy boy [7]2 years ago
7 0

Answer:

7x-2y=30

Find x when y=1

7x-2=30

7x=32

x= 32/7

or decimal form:

4.57 (rounded to the nearest hundredth)

You might be interested in
A walk-in medical clinic believes that arrivals are uniformly distributed over weekdays (Monday through Friday). It has collecte
allsm [11]

Answer:

The degrees of freedom are given by;

df =n-1= 5-1=4

The significance level is 0.1 so then the critical value would be given by:

F_{cric}= 7.779

If the calculated value is higher than this value we can reject the null hypothesis that the arrivals are uniformly distributed over weekdays

Step-by-step explanation:

For this case we have the following observed values:

Mon 25 Tue 22 Wed 19 Thu 18 Fri 16 Total 100

For this case the expected values for each day are assumed:

E_i = \frac{100}{5}= 20

The statsitic would be given by:

\chi^2 = \sum_{i=1}^n \frac{(O_i-E_i)^2}{E_i}

Where O represent the observed values and E the expected values

The degrees of freedom are given by;

df =n-1= 5-1=4

The significance level is 0.1 so then the critical value would be given by:

F_{cric}= 7.779

If the calculated value is higher than this value we can reject the null hypothesis that the arrivals are uniformly distributed over weekdays

5 0
3 years ago
I need help fast please!!
kaheart [24]

Solution set is: (7,\frac{13}{3})

Option B is correct

Step-by-step explanation:

We need to find the solution to system of equations

y=\frac{1}{3}x+2\\y=\frac{4}{3}x-5

Let:

y=\frac{1}{3}x+2\,\,\,eq(1)\\y=\frac{4}{3}x-5\,\,\,eq(2)

Putting value of y from eq(2) into eq(1)

\frac{4}{3}x-5=\frac{1}{3}x+2\\Combining\,\,like\,\,terms:\\\frac{4}{3}x-\frac{1}{3}x=2+5\\Taking\,\,LCM\\\frac{4x-1x}{3}=7\\\frac{3x}{3}=7\\x=7

So, value of x=7

Putting value of x into equation 1 to find the value of y:

y=\frac{1}{3}x+2\\y=\frac{1}{3}(7)+2\\y=\frac{7}{3}+2\\Taking\,\,LCM\\y=\frac{7+2*3}{3}\\y=\frac{7+6}{3}\\y=\frac{13}{3}

So, value of y = \frac{13}{3}

Solution set is: (7,\frac{13}{3})

Option B is correct

Keywords: System of equations

Learn more about system of equations at:

  • brainly.com/question/9045597
  • brainly.com/question/3739260
  • brainly.com/question/13168205

#learnwithBrainly

3 0
4 years ago
Use the Distributive Property to write each expression as an equivalent algebraic expression. –9(–x + 5)
Anna11 [10]

Answer:

  9x -45

Step-by-step explanation:

The distributive property tells you the factor outside parentheses applies to each of the terms inside parentheses:

  -9(-x +5) = (-9)(-x) +(-9)(5)

  = 9x -45

5 0
3 years ago
Read 2 more answers
10.44 is 14.4% of what number?
kipiarov [429]
The answer for that is .. 17?
3 0
3 years ago
Read 2 more answers
You deposit $2000 each year into an account earning 3% interest compounded annually. How much will you have in the account in 25
kozerog [31]

This is what I get.  Total will be 4187.56 with  Interest 2187.56.   By using the formula: To find amount : A=p (1+r/n)^n×t Where P=2000,r=3%,n=1,t=25 So plug in and solve  A=2000(1+0.03/1)^1×25   To find interest you use formula  A=p+I A=4187.56, p=2000,i= we need to find. 4187.56=2000+I 4187.56-2000=I 2187.56=i

3 0
3 years ago
Other questions:
  • Can anyone please answer this question????I really can't choose which answer to put in here!!!!!!!HELP ME PLEASE!!!!!!!30 points
    7·2 answers
  • Explain how knowing 1+7 help you find th sun
    10·1 answer
  • 11. Simplify (7x + 2 + 8x4) – (2x – 5 – 8x4) + (3x + 5x4) A. 15x4 + 19x + 7 B. 21x4 + 8x + 7 C. 21x4 + 14x + 7 D. 15x4 + 14x + 7
    9·2 answers
  • 30% of 85 on a percent ruler
    15·1 answer
  • Give one example of when would use the friendly numbers strategy to substract. Explain why
    14·1 answer
  • Use the x-intercept method to find all real solutions of the equation. x^3-8x^2+17x-10=0
    5·2 answers
  • A store charges $1.25 per bathroom tile and lets you use their installation tools for free.Another store charges $0.75 per tile
    7·1 answer
  • When given points (1,1) and (2,2), what is the slope ?
    14·1 answer
  • A line segment AB has the coordinates A (2,3) AND B ( 8,11) answer the following questions (1) What is the slope of AB? (2) What
    9·1 answer
  • Television screen has 6 
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!