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
Pachacha [2.7K]
3 years ago
9

Help I don’t know the answer

Mathematics
1 answer:
Bezzdna [24]3 years ago
4 0
We can do this two ways. For now, we can just do it the easiest way.
Since they are giving us coordinates, let’s just plug them in and see if they work.
-3(2)+5(4)=2(2)+3(4)
-6+20=4+12
14=16
So, (2,4) is not an answer. Let’s test 3,3.
-3(3)+5(3)=2(3)+3(3)
-9+15=6+9
6=15
It’s neither.
Now, we can see the other way.
-3x+5y=2x+3y
Let’s move the y to one side and the x to the other. Let’s subtract 3y from both sides.
-3x+2y=2x
Now add 3x.
2y=5x
We could’ve plugged in the x and y values with this as well.
But the answer would be neither.




You might be interested in
Two friends leave there houses and go towards each others, one friend runs 8 miles a hour, the other runs 7 miles an hour, there
natka813 [3]

hi there the answer is 7:30 see the picture

3 0
3 years ago
Consider kite WXYZ. What are the values of a and b? a = 4; b = 10. a = 4; b = 40, a = 8; b = 10, a = 8; b = 40
Brut [27]

Check the picture below.

let's recall that a kite is a quadrilateral, and thus is a polygon with 4 sides

sum of all interior angles in a polygon

180(n - 2)      n = number of sides

so for a quadrilateral that'd be 180( 4 - 2 ) = 360, thus

\bf 3b+70+50+3b=360\implies 6b+120=360\implies 6b=240 \\\\\\ b=\cfrac{240}{6}\implies b=40 \\\\[-0.35em] ~\dotfill\\\\ \overline{XY}=\overline{YZ}\implies 3a-5=a+11\implies 2a-5=11 \\\\\\ 2a=16\implies a=\cfrac{16}{2}\implies a=8

3 0
3 years ago
Read 2 more answers
I am soooo confuseddd what the heckkk Ok so Im doing something called 'Graphing Systems of Linear Equations' , well you might sa
horsena [70]
Okay, so the equation for the y-intercept is y=mx+b, this will be your base for graphing anything.

For y = x + 3 it's basically y = 1x + 3. Use b as the y-intercept, or 3, and plot it as (x,y), (0,3). Then use m as the slope, or 1. 1 means positive one so the point goes (0,3), (1, 4), (2, 5).

For y = -3x - 1 it's the same thing but different numbers. Use b, the y-intercept, and plot it. -1 is b, so plot (0,-1). Then use the slope to go up or down the direction you need to go, or m. m is -3, so for every +1 in x, the y will decrease by 3. (0,-1), (0,-4), (0,-7).

I hope this helped in some way or increased your understanding!
4 0
2 years ago
A woman bought 210 oranges for $6.50. She sold all of them at 3 for 20cents. How much profit did she make?
Dafna11 [192]

Divide total bought by 3 and multiply by 20cents:

210/3 = 70

70 x 0.20 = $14.00

Subtract the amount they paid by the amount they made:

14.00 - 6.50 = $7.50

The profit made was: $7.50

6 0
3 years ago
3k + 10 = 22 I just wanna know all the steps to this question<br> and answer
lakkis [162]
3k + 10 = 22
3k = 22-10
3k = 12
k = 12/3
k = 4
6 0
2 years ago
Other questions:
  • WILL GIVE BRAINEST <br>you invest 300$ in an account....
    9·2 answers
  • Which sentence represents a quadratic equation that can be expressed in standard form?
    5·1 answer
  • "All the religions are equal,the difference is their name ".Justify.<br>​
    5·1 answer
  • Solve. 2and 3/4+x+3 and 1/2 =10
    13·1 answer
  • 3(4-2x)=-2x<br> will make brainiest to the first two people that answer correctly with explanation
    6·1 answer
  • What is the solution to the system of equations below? y = -2x - 6 and 2y = -4x - 12
    11·1 answer
  • Slope = 1.75; (10, 16.5)
    12·1 answer
  • Hihi , please help if able.
    7·2 answers
  • What's the temperature on each thermometer?
    6·1 answer
  • A candy factory produces 7 candies a day. How many candies will the factory produce in 100 days ​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!