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
Dmitry_Shevchenko [17]
3 years ago
15

X +y=5, 3x-2y+5=0, this is the question​

Mathematics
1 answer:
Neko [114]3 years ago
4 0

Step-by-step explanation:

x+y=5

3x-2y+5=0

3x-2y= -5

x+y=5...... equation 1

3x-2y= -5....... equation 2

there fore make x the subject of the formula in equation 1

x=5-y.. equation 3

substitute equation three in equation 2

3(5-y)-2y=-5

15y-3y-2y=-5

10y=-5

divide both sides by 10

y=-5/10

y=-½

substitute y into equation 1

x+(-½)=5

x=5+½

x=5½

x=5½,y= -½

You might be interested in
What is the value of z , when c is 8 ?<br><br> z = 99 + 7 c2
likoan [24]

Answer:

211

Step-by-step explanation:

3 0
4 years ago
If x=12 in, y=16, and z=20 in, what is the surface area of the geometric shape formed by this net?
maria [59]

Given:

x = 12 in, y = 16 in and z = 20 in

To find:

The surface area of the geometric shape.

Solution:

Area of top rectangle = z × z

                                    = 20 × 20

Area of top rectangle = 400 in²

Area of middle rectangle = z × y

                                          = 20 × 16

Area of middle rectangle = 320 in²

Area of bottom rectangle = z × x

                                          = 20 × 12

Area of bottom rectangle = 240 in²

Area of left triangle = \frac{1}{2}yx

                                $=\frac{1}{2}\times16\times12

Area of left triangle = 96 in²

Area of right triangle = \frac{1}{2}yx

                                $=\frac{1}{2}\times16\times12

Area of right triangle = 96 in²

Surface area = 400 + 320 + 240 + 96 + 96

                     = 1152

The surface area of the geometric shape is 1152 in².

3 0
3 years ago
What precent of 25 is 10?​
vivado [14]

40%

40 percent of 25 is 10

10/25x100 and you will get your answer which is 40

4 0
3 years ago
Joseph is making kebabs. He wants each kebab to have 333 pieces of meat and 444 pieces of vegetables.
-Dominant- [34]

Answer:

The answers are C), D), and E) because these three answers satisfy the conditions above.

Step-by-step explanation:

Joseph could use C), D), and E) to make kebabs without any leftovers:

C) 30 pieces of meat and 40 pieces of vegetables

D) 45 pieces of meat and 60 pieces of vegetables

E) 72 pieces of meat and 96 pieces of vegetables

3 0
3 years ago
Consider the graph at right showing an economy in recession. Aggregate demand is currently at AD0. Equilibrium currently occurs
scoray [572]

Answer:

Follow me

Step-by-step explanation:

okkkkkkkkkkkkkkkkkkkkkkkkkkkk

3 0
3 years ago
Other questions:
  • Which of the following tangent points on g(x)=36/(x - 1) has an instantaneous rate of change of -9?
    13·2 answers
  • Choose the graph which represents the solution to the inequality:<br> 3x + 8 ≥ 11
    14·1 answer
  • Please explain!!!!!!!!!!!!!!
    12·2 answers
  • 5x+2y= -11 and 2x+2y=5 solve using elimination<br>​
    8·1 answer
  • Answer quickly for brainliest.
    8·1 answer
  • The demand for a movie ticket is probably _________________ than is the demand for a Broadway show ticket because ______________
    12·1 answer
  • Molly is training for a race and is running 4 miles each week for the next 12 weeks.If molly already ran 1 3/5 mile on the first
    7·2 answers
  • Which of the following is the final step in bisecting a line segment? (5 points)
    10·1 answer
  • In a 24 polygon, 23 of the exterior angles add to 310 degrees. What is the measure of the 24th exterior angle?
    11·1 answer
  • In AABC, what is the measure of 2C?<br> 108°<br> 36°<br> 6xº<br> 20°<br> 2x°<br> 2x<br> 18°
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!