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
olasank [31]
3 years ago
8

Find the solution of this system of linear

Mathematics
1 answer:
bezimeni [28]3 years ago
8 0
8x - 19 = 36
8x = 55
x = 55/8 = 6 7/8

-2x + 19 = -66
-2x = -85
2x = 85
x = 42 1/2
You might be interested in
6 + 2x = 24
Nutka1998 [239]
<span>6 + 2x = 24
2x = 18
x = 9
answer
9
----------
</span><span>3x – 5 ≥ 7
3x </span>≥ 12
x ≥ 4
answer
<span>{4, 5, 6}
</span>
--------------
<span>4x – 3 ≥ 5
</span><span>4x  ≥ 8
</span><span>x  ≥ 2
answer
</span><span>{2, 3, 4}
</span>
-----------------

<span>3r ≤ 4r – 6
 r </span> ≥ 6
answer
<span>{6, 7, 8, 9,10}</span>
6 0
3 years ago
Based on the sample of n = 25 healthy-weight students, can you conclude that healthy-weight students eat significantly fewer fat
Elis [28]

Answer:

z = -1.645

Step-by-step explanation:

b) n =25, M = 4.01 , \mu = 4.22 , \sigma = 0.60 , \alpha= 0.05

The hypothesis are given by,

H0 : \mu\geq 4.22 v/s H1 : \mu < 4.22

The test statistic is given by,

Check attachment for the formula that should br here.

z = \frac{4.01- 4.22 }{0.60 /\sqrt{25}}

= -1.75

The critical value of z = -1.645

The calculated value z > The critical value of z

Hence we reject null hypothesis.

The healthy-weight students eat significantly fewer fatty, sugary snacks than the overall population.

8 0
3 years ago
Read 2 more answers
Use the Distributive Property to find 2/5 × 10 2/3
Grace [21]
4.26666667. (Round it)
6 0
3 years ago
Read 2 more answers
What fractional part of a pound is an ounce
marysya [2.9K]
One ounce is one-sixteenth of a pound since there is 16 ounces in a pound. 
6 0
3 years ago
11. Little Sally Walker has a choice between going to an in-state college where she would pay
nalin [4]

Answer:

Step-by-step explanation:

Lets calculate first for in state college

yearly tuition fees = $3,500

monthly living expense = $700

one year has 12 months so yearly living expense =$700 * 12 = $8,400

Yearly expense of the in state college = yearly tuition fees ($3,500 )+ yearly living expense($8,400)   = $3,500 + $8,400  = $11,900

____________________________________________________

Lets calculate first for  out of state college

yearly tuition fees = $6,000

monthly living expense = $400

one year has 12 months so yearly living expense =$400 * 12 = $4,800

Yearly expense of the out of state college = yearly tuition fees ($3,500 )+ yearly living expense($8,400)   = $6,000 + $4,800  = $10,800

____________________________________________________

3 0
3 years ago
Other questions:
  • Name the values of the given digits <br>4s in 244
    11·1 answer
  • Evaluate | x + y |, for x = 8 and y = -15.<br><br> 7<br> -7<br> 23<br> -23
    11·2 answers
  • A facility has 150 beds and during a 30 day period they have 4,200 occupied bed days. What is their average percentage of occupa
    6·2 answers
  • 5.<br> 6a+b = 4<br> 5a + 2b = 1
    15·1 answer
  • PLEASE HELP ONLY CORRECT PLEASE TY!!
    9·1 answer
  • two variables have a positive linear correlation. does the dependent variable increase or decrease as the independent variable i
    8·1 answer
  • Does anyone know this
    6·1 answer
  • Help?- Plot and connect the points A (-4, 4), B (-1, 1), C (-6, 1), and find the length of BC.
    9·2 answers
  • 0.5(x^2 + 5x + 136)^2/3 = 50​
    7·1 answer
  • Which of these is a good conductor?<br> wood<br> silver<br> paper<br> air
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!