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
beks73 [17]
3 years ago
14

15x+2y=4000........(1)10x=4y....(2)find value of X & Y​

Mathematics
1 answer:
dexar [7]3 years ago
7 0

Answer:

x = 400

y = 1000

Step-by-step explanation:

Step 1

mult by the first equation by 2

15x + 2y = 4000                          ....... x 2

30x + 4y = 8000

the second equation is

10x = 4y

=

10x - 4y =0

then subtract the second equation from the first one

30x + 4y = 8000

- (minus)

10x  -  4y = 0

the you will get

20x = 8000

x = 8000/20  = 400

then you will substitute value of x in any the give equation to work out the value of y

You might be interested in
Find the value of y.
Luda [366]

Answer:

2\sqrt{2}

Step-by-step explanation:

Pythagorean Theorem

\sqrt{3^2-1^2}\\2\sqrt{2}

7 0
3 years ago
2..52 X 10 to the fifth????<br><br>PLS HELPP!
love history [14]

Answer:

252000

Step-by-step explanation:

we take 2.52 and move the decimal back 5 places. when we run out of numbers we add zeros. so if we moved 3 places back it would be 2520 but since we move 5 it is 252000. 10 by any power you just move the decimal place if it is negtive move it forward if positive move backward.

7 0
3 years ago
Whatttttt? Help meeeeeeeeeeeeeeeeeeeeeeeee... lost all braincells binge watching peppa!!!
morpeh [17]

Answer: C

Step-by-step explanation: It's the most logical.

and don't lie. We all know you watch dora more.

5 0
3 years ago
Read 2 more answers
1 find the area in square cm of a square whose side is
lara [203]
For question 1:

Part i)

2.6 x 2.6 = 6.76 cm squared

No unit conversions needed

Part ii)

1.2 dm = 1.2 / 1000000 = 0.0000012 cm

0.0000012 x 0.0000012 = 0.00000000000144 cm squared

Question 2:

16.5dm = 16.5/ 1000 = 0.0165 m

0.0165 x 0.0165 = 0.00027225 m squared

I hope this has helped
3 0
3 years ago
Read 2 more answers
A jar of marbles contains 120 marbles the larger jar of marbles contains one and 56 times as many marbles how many marbles are i
Papessa [141]
I think it’s 6721 marbles in the larger jar.
6 0
3 years ago
Other questions:
  • Kenji wants to divide 48.6 by 0.15. What is the first step that Kenji must complete?
    13·2 answers
  • Let f(x)=-5x-1 and g(x)=x^2 4find f(g)(4))
    12·1 answer
  • Anna created the poster shown below: A rectangle is shown. The length of the rectangle is labeled as length equal to 36 cm, and
    10·2 answers
  • For what value of "x" will the expression -3*5*x have a positive answer"
    14·1 answer
  • Which of the following sets of data does not contain an outlier?
    10·1 answer
  • Consider the steps to convert 49% to a decimal.
    6·2 answers
  • Juan and Dylan are selling bottled water. Juan sold 4 bottles for every 6 that Dylan sold. Dylan sold 16 more bottles than Juan.
    10·1 answer
  • Hi guys best answer gets a brainlist !!!!!!! <br> please view image below
    8·1 answer
  • How many Solutions does 6 + x/5 = x/5 - 5 - 3x/10 have?
    7·1 answer
  • Keisha bought some candy. At the end of the day she had three and one half bags remaining! She wanted to share what remained equ
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!