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
Natalka [10]
3 years ago
11

If (3)x+y = 81 and (81)x-y = 3 find the values of x and y.

Mathematics
1 answer:
ratelena [41]3 years ago
7 0
You have to isolate the variables meaning you have to do the opposite of multiply 81 you have to divide 3/81: x and y for both sides will be the same thing
You might be interested in
HELP I DONT GET IT AT ALL
Tomtit [17]
I hope this helps I couldn’t explain it with words

6 0
3 years ago
Read 2 more answers
Can someone please help me for A, B, and C
galben [10]

bat sakin mo inaasa dapat ikaw ang mag answer Nyan

salamat nalang sa pt

7 0
3 years ago
How do i solve this for x
Lostsunrise [7]
C) The 2 triangles are similar , then we can write:

5x/45 = 20/36 . Cross multiplication:

5x*36 = 45*20
180x = 900   and x = 900/180 , x = 5 (and 5x = 25)

d) Remember the proportionality theorem (or Thales')
You can write the following proportion:
GH/HJ = KL/LM
8/6 = 10/x . Cross multiplication:

8x = 60 and x = 60/8 , x = 7.5

3 0
3 years ago
A rectangular garden is 5 ft longer than it is wide. Its area is 300 ft2. What are its dimensions?​
topjm [15]

Answer:

width=x

length=5x

area= 300ft2

area=lxb

300=5x(x)

300=5x^2

x^2=60

x=7.74

7.74(5)=38.7

dimensions are 38.7ft by 7.74 ft

<u><em>Please mark as brainliest</em></u>

5 0
1 year ago
Read 2 more answers
What is the prime factorization of 891
Advocard [28]

891

prime factors   number to factorize

3                          297

3                          99

3                          33

3                          11

11                          1

Therefore, the prime factorization of 891 is 1×3×3×3×3×11= 1×3^4×11, or 1*81*11




6 0
3 years ago
Read 2 more answers
Other questions:
  • Estimate.<br> 183% of 50
    7·2 answers
  • Help please.ASAP.?????????
    6·1 answer
  • Solve for X. <br><br> -18=9-3x
    7·2 answers
  • What is 52.85 rounded to the nearest tenth
    13·1 answer
  • I NEED THIS LIKE, RIGHT NOW. THIS IS DUE AT 3:00
    13·2 answers
  • Fred is making a fruit salad the ratio of cups of peaches to cups of cherries is 2:3 how many cups of peaches will feed need to
    13·1 answer
  • Apparently a is wrong, can someone explain this to me?
    12·1 answer
  • Please STEP- BY- STEP
    12·1 answer
  • PLZ HELP ME ASAP plz and thanks
    13·1 answer
  • Please help, solve for x
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!