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
Triss [41]
1 year ago
7

X=3y+10 x=-8y-12 can u guys help me find the steps to solve this equations

Mathematics
1 answer:
Natalija [7]1 year ago
8 0

Answer:

x=4, y=-2

Step-by-step explanation:

x = 3y + 10 \\ x =  - 8y -12\\ now \\ 3y  + 10 =  - 8y - 12 \\ 3y + 8y =  - 12 - 10 \\ 11y =  - 22 \\ y =  \frac{ - 22}{11}  \\ y =  - 2 \\ again \: putting \: the \: value \:of \: y \\ x = 3y + 10 \\ x = 3( - 2) + 10 \\ x =  - 6 + 10 \\ x = 4

You might be interested in
What is 89 divide into 4356
ValentinkaMS [17]
Divide 89 by 4356
\frac{89}{4356} = 0.02 is the answer
6 0
2 years ago
Read 2 more answers
What is the area, in square units, of trapezoid AEDC shown below?
just olya [345]
20 • 12 is 240
1/2 • 12 • 4 is 24
so 264
7 0
2 years ago
Cecilia's family travel 2/7 of the distance your uncles house on Saturday. They traveled 4/5 of the remaining distance on Sunday
Korolek [52]

Answer:

1 3/35

Step-by-step explanation:

3 0
2 years ago
Given that X ~ N(120, 35). We survey samples of 25 and are interested in the distribution of X-bar. Find the z-score associated
lubasha [3.4K]

Answer:

Option c -2.8571

Step-by-step explanation:

z-score are calculated as

z=\frac{xbar-mean}{\frac{S.D}{\sqrt{n} } }.

We are given that mean=120 and standard deviation=S.D=35 as X~N(120,35).

Sample size=n=25.

We have to find z-score for x-bar=100. So,

z-score=[100-120]/[35/√25]

z-score=[-20]/[35/5]

z-score=-20/7

z-score=-2.8571.

Thus,  the z-score associated with x-bar = 100 is -2.8571.

8 0
3 years ago
Can someone please help me .?
MariettaO [177]

Answer:

5

Step-by-step explanation:

5+7

4 0
3 years ago
Other questions:
  • A cable TV company charges $25
    6·1 answer
  • PLEASE HELP!! You can get anything you want at Alberto's restaurant, as long as what you want is a sandwich with two different f
    12·2 answers
  • What is the side length of the cube
    11·2 answers
  • 55 is 40% of what number
    15·1 answer
  • Someone please help!!
    12·1 answer
  • I need help it’s homework and idk how to do it
    9·1 answer
  • Determine whether each sequence appears to be an arithmetic
    12·1 answer
  • BRAINLIEST TO CORRECT
    11·2 answers
  • Rewrite the following in radical form <br> X^-11/3
    5·1 answer
  • 1. Solve each system of linear equations below, then check your work.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!