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
nikdorinn [45]
3 years ago
10

X=5-y 2x+5y=4 substituted

Mathematics
1 answer:
anzhelika [568]3 years ago
7 0

Step-by-step explanation:

put x=5-y into eqn2

2(5-y)+5y=4

10-2y+5y=4

10+3y=4

3y=-6

y=-2

put y=-2 into eqn1

x=5--2

x=7

You might be interested in
What is this can someone please help ?
Evgesh-ka [11]

Answer:

The answer is most likely A

Hope this helps if t does please consider giving brainliest

Cya on the next one!

Step-by-step explanation:

6 0
3 years ago
6. Ava had a rough day on the stock market. Her stocks dropped in value to
Pani-rosa [81]

Answer:

420,000

Step-by-step explanation:

If 140,000 is \frac{1}{3} of what she had yesterday, then you just multiply the number by 3 because \frac{1}{3} times 3 is \frac{3}{3}, which is 1.

6 0
2 years ago
Read 2 more answers
6. The table shows the equations Ms. Valez discussed in math class today.
k0ka [10]

Answer:

One zero is always added when the power is added by +1

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
aul bought 9 total shirts for a total of $72. Tee shirts cost $10 and long sleeve shirts cost $7. How many of each type of shirt
vodomira [7]

Set up a system of equations:


\text{Total shirts bought}

x + y = 9


\text{Total cost}

10x + 7y = 72


x represents how many tee shirts were bought, and y represents how many long sleeve shirts were bought.


For the first equation, subtract y from both sides to get x by itself:


x = 9 - y


We'll now use substitution. Since x is equal to a value, we can substitute this value for the other equation:


10(9-y) + 7y = 72


Distribute the 10 to both terms in parentheses:


10 \times 9 = 90

10 \times -y = -10y


90 - 10y +7y = 72


Combine like terms:


-10y + 7y = -3y

90 - 3y = 72


Subtract 90 from both sides:


-3y = -18


Divide both sides by -3 to get y by itself:


y = 6


6 long sleeve shirts were bought.


Now you have a value for y. Input this value into the first equation:


x + 6 = 9


Subtract both sides by 6 to get x by itself:


x = 3


3 tee shirts were bought.


The answer is B. 3 tee shirts and 6 long sleeve shirts.

4 0
3 years ago
Read 2 more answers
|x-20| if x&lt;-20<br> I need help with the opposite equation
yKpoI14uk [10]
-(x-20)
Basically it’s the same as your other question but your not adding twenty!
4 0
2 years ago
Other questions:
  • Veronica has received a $3,000 gift and is looking for a bank to start a savings account. Which option would be the best for her
    13·2 answers
  • I need your help with this question please explain why and show work.
    10·2 answers
  • How do u do this question also pls show working out with steps on a piece of paper pls:
    9·1 answer
  • Which logarithmic equation is equivalent to 8^2 = 64?
    6·1 answer
  • 15 added to 8 times a number is more than 3 times the value of 1 less than twice the number​
    5·1 answer
  • Brandon enters a contest at the gym. He earns 1 point for his first workout. If he works out the next day, he earns double the p
    15·1 answer
  • How do i find the slope of 5x-12y=24??
    7·1 answer
  • Plz answer picture included
    14·2 answers
  • Which graph and equation shows a proportional relationship between and y? NEED HELP ASAP!!!
    9·2 answers
  • 6(4x – 5) = <br> 42true?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!