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
Serjik [45]
3 years ago
6

Show the steps and solution explanations.

Mathematics
1 answer:
strojnjashka [21]3 years ago
6 0

Answer:

Step-by-step explanation:

x+4y=6

x+4y=15

-------------

x+4y=6

-(x+4y)=-15

------------------

x+4y=6

-x-4y=-15

---------------

0=-9

no solution

Answer: No Solution

------------------------------------

x+4y=7

3x+12y=21

----------------

simplify 3x+12y=21 into x+4y=7

Answer: Infinitely many solutions

-----------------------------------------------------

x-y=1

2x+y=4

-------------

x=y+1

2(y+1)+y=4

2y+2+y=4

3y=4-2

3y=2

y=2/3

x-2/3=1

x=1+2/3

x=3/3+2/3=5/3

Answer: x=5/3, y=2/3. (5/3, 2/3).

You might be interested in
LONG WORD PROBLEM I KNOW! PLEASE ILL GIVE THANKS BRAINLIEST AND POINTS FOR THIS ANSWER! PLEASE!
11Alexandr11 [23.1K]
Answer:
5X + 8Y >= 300; intersection at (-20, 50)
Step-by-step explanation:
let t = work hours
0 < t < 30
X = time lawn mowing
Y = time babysitting.
X + Y < 30
5X + 8Y >= 300
We could solve...
X < 30 - Y
5(30 - Y) + 8Y >=300
150 - 5Y + 8Y >= 300
3Y >=150
Y >=50
then X < -20
intersection at (-20, 50)
5 0
3 years ago
Tan70=2tan50+tan20 help me please ​
IceJOKER [234]

Answer:

Step-by-step explanation:

The answer is already there

8 0
3 years ago
Determine the radius of a circle with a circumference of 14 pi inches ​
ipn [44]

Answer:

the radius is 7

Step-by-step explanation:

circumference is equal to pi(d)

you said it is 14pi

all you have to do is divide d by 2 to get r

7 0
2 years ago
A new software company wants to start selling DVDs with their product. The manager notices that when the price for a DVD is 18 d
m_a_m_a [10]
43 + 150 + 18 + 82 then that is the answer
8 0
3 years ago
What does X equal?<br><br> 5x+10=11
Liula [17]

Answer:

x=1/5

Step-by-step explanation:

you can also use mathpapa it's a calculator that gives you the answer and solves it for you step by step.

5 0
2 years ago
Read 2 more answers
Other questions:
  • For which function is f(x) equal to f-1(x)?
    9·1 answer
  • Simplify The Expression. 12/c^-8d^2
    12·1 answer
  • What is the answer to the long question?
    9·1 answer
  • 20 hours put into degrees
    14·1 answer
  • Help please homework due tomorrow and I don't know how to do this
    14·2 answers
  • Please help . Really need done . Thank you . Will mark Brainly .
    8·1 answer
  • 7. A clothing salesman wants to earn $6,000 in May. He receives a base salary of $4,000 per month as well as 10%
    14·1 answer
  • If a-4=1/a^(x-1) then x=?​
    10·1 answer
  • Function tables are?
    6·1 answer
  • Ms. Usman buys about 14.4 gallons of gas every other week. How many gallons of ir gas does she buy in a year?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!