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
Sveta_85 [38]
3 years ago
13

3x = 27 + Зу 3х - 10у = 27 please explain how you got the answer.

Mathematics
1 answer:
konstantin123 [22]3 years ago
7 0

Answer:

Hi there!

Your answer is:

Y= 0

X= 9

Step-by-step explanation:

3x=27+3y

3x-10y=27

Solve one of them for Y

I chose the first equation

3x=27+3y

-27

3x-27=3y

/3

x-9 = y

NOW, plug y in the second equation!

3x-10y=27

y= x-9

3x-10y=27

3x-10(x-9) = 27

Solve for x!

3x-10x+90 = 27

-7x + 90 =27

-90

-7x = -63

/-7

x= 9

FINALLY, plug back in x for y equation

y=x-9

x=9

y=9-9

y=0

You might be interested in
The cost of 6 pounds of oranges is $12.06. What is the constant of proportionality that relates the cost and dollars, y, to the
iren2701 [21]

Answer:

I'm not 100% correct but this is what I believe proportionality is where k=y/x and k is proportionality constant

$6.57: 3 pounds of orange

y dollar: x pounds of orange

so the proportion

$6.57 y

_____ = _____

3 x

6.57×

_____ = y

3

2.19x = y

so k = 2.19

8 0
3 years ago
Terry calculates how much wood he needs to build the desk shown in the diagram . He says the area is 600ft2
ella [17]
The correct area is 3600ft2
7 0
3 years ago
Read 2 more answers
An amount of $41,000 is borrowed for five years at 5% interest, compound annually. If the loan is paid in full at the end of tha
Zielflug [23.3K]
P = 41,000(1.05)^5
P = 41,000(1.27628)
P = 52,327
6 0
4 years ago
What is the most efficient first step to isolate the variable term on one side of this equation?
uysha [10]

Answer:

add 4x to both sides

Step-by-step explanation:

because -9x is the only thing on the left you want to move all the x's to the left

7 0
4 years ago
Read 2 more answers
How many different outfits can John make if his wardrobe includes the following: 10 different shirts 4 different colors of pants
nexus9112 [7]

Answer:

He could make 17280 outfits

Step-by-step explanation:

Given,

Number of shirts = 10,

Pants = 4,

Shoes = 3,

Neckties = 12,

Socks = 12,

Thus, the total possible outfits he can make  

=^{10}C_1\times ^{4}C_1\times ^3C_1\times ^{12}C_1\times ^{12}C_1

=10 \times 4 \times 3 \times 12 \times 12

= 17280

6 0
3 years ago
Other questions:
  • 3 screws 3/32 times 4 long.
    13·1 answer
  • Given a mean of 150 and a standard deviation of 25:
    5·1 answer
  • A store is offering a 25% discount on all items. Also, employees get a 10% employee discount. If you are an employee which disco
    5·1 answer
  • What is the wrong with the problem
    13·1 answer
  • Is WXY ~ ZYV? Justify your answer. The image is not drawn to scale.
    14·2 answers
  • Assume the following: 1) the scattergraph intersects the Y axis at $200; 2) the estimated line on the scattergraph increases by
    10·1 answer
  • (06.04 MC)
    7·1 answer
  • 2. The price of 1 kg potatoes increased from
    5·2 answers
  • Only answer if you know! no spams :)
    7·2 answers
  • Quick algebra 1 question for 10 points!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!