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
ioda
3 years ago
12

X-5y=2 and 9x+8=15 solve by substitution

Mathematics
1 answer:
lozanna [386]3 years ago
7 0
x-5y=2
Hence x=2+5y   (Equation I)
9x+8=15             (Equation II)
Substituting Equation I in Equation II
9(2+5y)+8=15
18+45y+8=15
26+45y=15
45y=-11
Hence y= - \frac{11}{45}

Substituting this in Equation in I to get X

x-5(- \frac{11}{45} )=2
x+ \frac{11}{9}=2
x= 2- \frac{11}{9}
x= \frac{17}{9}
You might be interested in
A customer who sees a pair of boots online but then decides to buy the same pair at Macy's after trying them on would be best cl
allochka39001 [22]

The term used to describe a customer who sees a pair of boots online but then decides to buy the same pair at Macy's after trying them on would be best classified as a cross-channel shopper.

<h3>Who is a cross-channel shopper?</h3>

A cross-channel shopper is a consumer who uses various combination of both several channels for the same purchase.

The customer has checked the pair of boots online but rather purchased the same boots at Macy's instead of purchasing online.

Therefore, a cross-channel shopper uses different purchasing channel to purchase a product.

Learn more about consumer:

brainly.com/question/380037

#SPJ1

5 0
2 years ago
I need help... how to simplify this ?
valentina_108 [34]

Answer:

b^{2} \sqrt{30b}

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

7 0
3 years ago
Read 2 more answers
PLEASEEE help with 3-4 and a-b :)
attashe74 [19]
The awnser would be-(4a+b-3) I hope this helps you
3 0
3 years ago
A line passes through the point (0,-4) and has slope-5. What is the equation of the line in slope-intercept form?​
Mazyrski [523]
Y= -5x -4 because you would do slope intercept form and sub the y and x in for -4 and 0
4 0
3 years ago
Read 2 more answers
What is the risk of going into a group of more than 20 or more people at this time from coronavirus?
olga55 [171]

Answer:

Even if a person doesn't show symptoms, they can still have it.

Step-by-step explanation:

That's the problem.

Even if you think everyone isn't sick, they very well could be, and because there is no vaccine and it spreads so quickly, there's a chance that all the people in that group could get it.

5 0
3 years ago
Read 2 more answers
Other questions:
  • How are the dividend and divisor of a division expression related to parts of a fraction
    6·1 answer
  • PLZZZ HELPPPPPPPP WITH THE FIRST ONE
    14·2 answers
  • Please help me with this
    15·1 answer
  • N exponential function and a quadratic function are graphed below. Which of the following is true of the growth rate of the func
    7·1 answer
  • 5x + 5 - 2x - 1 which of the following is an equivalent expression
    8·1 answer
  • PLEASE HELP ASAP!!!
    11·1 answer
  • 1.99x+6=2.50x can someone help me
    8·1 answer
  • PLEASEE HELPP ME WITH THISS TY
    6·1 answer
  • Someone pleaseee helppppp
    12·1 answer
  • a man divides ₹90,000 among wife son and daughter in the ratio 1/3:1/4:1/6 . find amount received them​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!