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
lawyer [7]
3 years ago
9

−6x + 5y = 16x + 4y = −10

Mathematics
2 answers:
sp2606 [1]3 years ago
5 0

Answer:

    X=-\frac{5}{52}

Step-by-step explanation:

-6x+5y=16x+4y=-10\\Let\\-6x+5y=-10(1)\\16x+4y=-10(2)\\8(1)+3(2):\\48x+48x+40y+12y=-80-30\\52y=-110\\y= -\frac{110}{52} =-\frac{55}{26}

replace y into (1):

-6x+5(-\frac{55}{26})=-10\\-6x=-10-5(-\frac{55}{26}  \\x= -\frac{5}{52}

PLEASE MARK ME AS BRAINLIEST

sashaice [31]3 years ago
3 0
<h2>What do u want us to help u with?</h2><h2>Im willing to help u!!</h2>
You might be interested in
The rectangle has an area of x^2-7x+10 square meters and a width of x−5 meters. What expression represents the length of the rec
Katyanochek1 [597]

Answer:

length = x - 2

Step-by-step explanation:

Area (A) of rectangle = lw ( l is the length and w the width )

A = x² - 7x + 10 = (x - 2)(x - 5) ← in factored form

l = \frac{A}{w} = \frac{(x-2)(x-5)}{x-5}

cancel the factor (x - 5) on the numerator/ denominator, hence

l = x - 2


8 0
3 years ago
November 11 became known, officially became a holiday in the United States in 1926, and a national holiday 12 years later.
Artemon [7]
It is known as Veteran's Day
7 0
3 years ago
The homeowner is worried about the work needed to maintain a grass lawn and flower beds, so she is now looking at some low-maint
ICE Princess25 [194]

Answer:

nsjsbdjdjdjdbdyshehdhjdkdhejdvgbshsvdjydjdhsdñ

8 0
3 years ago
Six human skulls from around 4000 b.c. were measured, and the lengths have a mean of 94.2 mm and a standard deviation of 4.9
professor190 [17]

Answer:

Step-by-step explanation:

Hello!

You have to estimate the mean length of 4000 b.c. human skulls trough a 95% confidence interval.

You know that

n= 6 human skulls

\frac{}{X}= 94.2mm

S= 4.9

Assuming that the variable X: length of a 4000b.c. human skull (mm) has a normal distribution, to construct the interval you have to use the t statistic:

[\frac{}{X} ± t_{n_1;1-\alpha /2} * \frac{S}{\sqrt{n} }]

t_{n-1;1-\alpha /2}= t_{5; 0.975}= 2.571

[94.2 ± 2.571 * \frac{4.9}{\sqrt{6} }]

[89.06; 99.34]mm

With a 95% confidence level you'd expect the interval [89.06; 99.34]mm to contain the value for the average skull length for humans 4000 b.c.

I hope this helps!

3 0
3 years ago
Please help IMMEDIATELY ​
Lorico [155]

Answer:

I think its C. Hope that helped

Step-by-step explanation:

5 0
4 years ago
Other questions:
  • Simplify the expression. <br><br> (16y^5/y^3)12 <br><br> Enter your answer in the box
    8·1 answer
  • Chantelle has signed up for hockey. Her parents set a limit of $400 for costs for the season. It costs $250 to sign up and $5 fo
    9·1 answer
  • A.140 B. 60 C.120 or D.40 ?
    11·2 answers
  • How to find the surface area of triangular prisms<br> ?
    5·2 answers
  • If y varies jointly with x and z, and y = 200 when x = 8 and z = 10, what is x when y = 165 and z = 11?
    13·2 answers
  • Answer this and EXPLAIN why and HOW you got your answer!<br><br> SHOW YOUR WORK.......
    15·2 answers
  • What two numbers give you the difference of 4 and the sum of 58?​
    15·1 answer
  • The triangles below are similar. Find the value of x.<br><br> 9<br> 8<br> 10.5<br> 11
    8·1 answer
  • 1/2 of 9 ladalaada sudlnet
    15·1 answer
  • What is the value of 7, 488 / 416
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!