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
frutty [35]
3 years ago
9

3X - 2y = 2 5x - 5y = 10

Mathematics
2 answers:
KonstantinChe [14]3 years ago
6 0
Y= 3x over -2 x= 2+9
jasenka [17]3 years ago
6 0

Answer:

x = -2 y = -4

Step-by-step explanation:

3x- 2y = 2 -> 15x - 10y = 10

5x - 5y = 10 -> 15x - 15y = 30

Substract one equation from another:

15x - 15x - 10y + 15y = 10 -30

5y = -20

y = -4

Plug in y into an equation

3x + 8 = 2

3x = - 6

x = - 2

You might be interested in
Need help with number 15 please help
Viktor [21]
A. 80 students
B. 12 students
8 0
3 years ago
What solid is generated when the semicircle is rotated about the line?
ddd [48]
The answer is hollow sphere
4 0
3 years ago
Read 2 more answers
The day length in Manila, Philippines, varies over time in a periodic way that can be modeled by a trigonometric function.
iris [78.8K]

Answer:

  • L(t) = 727.775 -51.875cos(2π(t +11)/365)
  • 705.93 minutes

Step-by-step explanation:

a) The midline of the function is the average of the peak values:

  (675.85 +779.60)/2 = 727.725 . . . minutes

The amplitude of the function is half the difference of the peak values:

  (779.60 -675.85)/2 = 51.875 . . . minutes

Since the minimum of the function is closest to the origin, we choose to use the negative cosine function as the parent function.

Where t is the number of days from 1 January, we want to shift the graph 11 units to the left, so we will use (t+11) in our function definition.

Since the period is 365 days, we will use (2π/365) as the scale factor for the argument of the cosine function.

Our formula is ...

  L(t) = 727.775 -51.875cos(2π(t +11)/365)

__

b) L(55) ≈ 705.93 minutes

8 0
3 years ago
Find the unit rate.<br> 6,460 liters in 323 minutes<br> liters per minute
Sloan [31]

Answer:

20

Step-by-step explanation:

6,460 divided by 323 = 20

8 0
3 years ago
Read 2 more answers
Find a formula for the nth term
maxonik [38]

Answer:

an = 2.5n -0.2

Step-by-step explanation:

an = 2.5n -0.2

4 0
2 years ago
Other questions:
  • Sketch the following to help answer the question. Kite QRST has a short diagonal of QS and a long diagonal of RT. The diagonals
    5·2 answers
  • A cell phone service provider offers two plans. Plan A includes a fee of $25 per month and charges $0.25 for every call. Plan B
    12·1 answer
  • Ishaan is 2 times as old as Christopher. 35 years ago Ishaan was 7 times as old as Christopher. How old is ishaan now?
    5·2 answers
  • Barbara is deciding between Banquet Chefs and CeCe's Catering to cater an awards banquet. Barbara needs to choose the company th
    15·1 answer
  • I need number 31 and 32 answered
    11·1 answer
  • PLEASE HELP ME! I NEED ANSWER ASAP!!!
    8·1 answer
  • Simplify the expression.
    8·2 answers
  • PLSS HELP WITH THIS MATH I WILL GIVE BRAINLIEST TO THE BEST ANSWER WITH AN EXPLIATION!!!!!!
    12·2 answers
  • Solve.<br> 10-80+300+900-1000+1000-2+10000000-1x0
    8·2 answers
  • I can't find x y or z​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!