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
Lina20 [59]
3 years ago
14

Solve the system of linear equations using elimination. −9x − 10y = 17 −10x − 10y = 10

Mathematics
1 answer:
pav-90 [236]3 years ago
4 0

Answer:

you are to subtract the equation

You might be interested in
Sheila has x 20 dollar bills, and Tamsin has y 10 dollar bills. Sheila has a total of $50 more than Tamsin, but Tamsin has 1 mor
natka813 [3]

Answer:

Sheila have 6 bills

Step-by-step explanation:

Suppose Sheila has x '20' dollar bills, so the total cost of her bill = $20x

Suppose Tamsin has y '10' dollar bills, so the total cost of her bill = $10y

<h3>Equation 1</h3>

<em>Sheila has a total of $50 more than Tamsin</em>

<h2><em>10y + 50 = 20x</em></h2><h2 /><h3>Equation 2</h3>

<em>Tamsin has 1 more bill than Sheila.</em>

<h2>y = x + 1 </h2><h2 />

<em>Now solve them by putting value of x in equation </em>

10( x + 1 ) + 50 = 20x

10x + 10 + 50 = 20x

60 = 20x - 10x

10x = 60

x = 60/10

x = 6

and

y = 7

<em> </em>

6 0
3 years ago
Which steps transform the graph of y = x2 to y = –2(x – 2)2 + 2? (1 point)
Kitty [74]
Y = x²  to: y = - 2 ( x - 2 )² + 2
Answer:
D ) reflect across the x-axis, translate 2 units to the right, translate up 2 units, stretch by the factor of 2
7 0
3 years ago
Line JK passes through points J(-4,-5) and K(-6, 3). If the equation of the line is written in slope-intercept form, y = mx + b,
Scilla [17]

Answer:

Line JK passes through points J(-4,-5) and K(-6, 3).

Line JK has form of y = mx + b

=> -5 = -4m + b

=>  3 = -6m + b

Subtract 2nd equation from 1st equation:

=> -8 = 2m

=> m = -4

Substitute back m = -4 into 1st equation:

=> -5 = -4(-4) + b

=> b = -21

Hope this helps!

:)

6 0
3 years ago
Briefly describe scientific notation. how is it useful for writing large and small​ numbers? how is it useful for making​ approx
Alenkasestr [34]
Scientific notation, also called pattern or notation in exponential form, is a way of writing numbers that accommodate values too large (100000000000) or small (0.00000000001) to be written in a conventional manner.

 The use of this notation is based on powers of 104
 Example:
 Big numbers:
 100000000000 = 1 * 10 ^ {11}&#10;
 Small numbers:
 0.00000000001 = 1 * 10 ^{-11}

 However, in areas such as physics and chemistry, scientific notation is important to make approximations such as:
 mass of a proton
 mass of an electron and others.
4 0
3 years ago
HELP ASAP!!!!Write a function g whose graph represents the indicated transformation of the graph of f.
Pavel [41]

Answer:that hard

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • PLEASE HELP!!<br> (x-7)^3 (x+2)^2 (x-13) &lt;0
    12·1 answer
  • HELP FASTTTT<br> explain how to determine the end behavior of a polynomial
    5·2 answers
  • What is the factored from of 9x^2-64
    6·2 answers
  • What is the correct answer ? Please explain why !!!
    5·2 answers
  • Help please please on math homework thank you so much!!
    9·1 answer
  • Please help!! Quickly
    5·1 answer
  • The two lines graphed below are parallel. How many solutions are there to the
    11·1 answer
  • PLEASE HELP!!!! 30 POINTS!!
    11·1 answer
  • (15 points!!) please help!! If you can answer the other questions on my page I will Venmo u!
    15·1 answer
  • A boat traveled 54 km with the stream and 42 km against the stream spending a total of as much time as it would spend while trav
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!