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
FromTheMoon [43]
3 years ago
11

-x + y = 8

Mathematics
1 answer:
podryga [215]3 years ago
4 0

Answer:

No solution

Step-by-step explanation:

-x + y = 8..............(1)

1/2x - 1/2y = 3......(2)

Multiply (2) by 2

x - y = 6 ............(3)

Adding (1) and (3)

-x + x + y - y = 8 + 3

x and y are both eliminated so no solution

You might be interested in
Rob is two times as old as Jake. Three years ago the sum of their ages was 21 years. Find their present ages?
spin [16.1K]
Rob is 18
Jake is 9

21-15=6
6+3=9
9x2=18
(No clue how I got 15 )
8 0
3 years ago
Read 2 more answers
Classify the following triangle
larisa86 [58]

Answer:

A. Right Triangle

D. Isosceles

Step-by-step explanation:

Well, since it has a square at the bottom of the triangle, it means it's a right triangle, because it has a 90 degree angle.

It is also an isosceles triangle, because two of the sides are of equal length.

Hope this helped!

:)

4 0
3 years ago
a sample of unknown liquid has a volume of 12.0ml and a mass off 6g, what is its density? and how did you do the problem?
maw [93]

Answer:


Step-by-step explanation:

The equation for solving for density is:

Density = mass / volume

Then plug in the values:

Density = 6 g / 12 mL

Divide and don't forget the units!

Density = 0.5 g/mL


5 0
3 years ago
A certain brand of jelly beans are made so that each package contains about the same number of beans. The filling procedure is n
pantera1 [17]

Answer:

p=0.063

Step-by-step explanation:

Let X be number of the certain brand of jelly beans that are made so that each package contains about the same number of beans.

X is N(375, 8)

YOu are collecting a sample size of

n = 8

Findings from the sample

\bar x =370\\

H_0: \bar x =375\\H_a: \bar x

(Left tailed test at 5% level)

Since sample size is small though sigma is known we use Z test, since norm

Mean difference = -5

Std error = \frac{8}{\sqrt{8} } =2.828

Test statistic t = mean diference / std error = \frac{-5}{2.828} \\=-1.768

df = n-1 =5

p value = 0.063

7 0
3 years ago
CALLING ALL BRAINLY USER HELP ME AND I'LL MARK U (BRAINLLEST)!!!
Natalka [10]

Answer:

it would be b for 1 since 7 would be negative and the 3 would be positive

7 0
3 years ago
Other questions:
  • The length of a rectangle is 5in longer than its width. If the perimeter of the rectangle is 46in, find its area
    5·1 answer
  • Help me I will give extra points
    8·1 answer
  • What is the square route of 49
    13·2 answers
  • LESSON 23-1 PRACTICE
    12·2 answers
  • What is the slope of the equation y - 3 = -4(x - 5)?
    8·2 answers
  • What is 1/2h + 2h + 3/2h - 1 simplified?
    9·1 answer
  • When 4(0.5x+2.5y - 0.7x- 1.3y +4) is simplifted, what is resulting expersion
    14·1 answer
  • Answer pls lol. also please make sure to explain it!
    6·1 answer
  • Decide whether this statement is "always, sometimes, or never"
    13·1 answer
  • Find the measure of angle six
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!