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
Arturiano [62]
3 years ago
8

Use algebraic rules of equations to predict the solution to the system of equations. Include all of your work for full credit.

Mathematics
2 answers:
dolphi86 [110]3 years ago
4 0
X+2y=10
x=10-2y

6y=-3(10-2y)+30
6y=-30+6y+30
0=0
kompoz [17]3 years ago
3 0

Answer:

infinite solutions

Step-by-step explanation:

x+2y=10

6y=-3x+30

To solve for x  and y we use substitution method

LEts solve the first equation for x

x+2y=10

Subtract 2y on both sides

x=10-2y

Now plug in x in second equation

6y=-3x+30

6y=-3(10-2y)+30

6y=-30+6y+30

6y=6y

Both sides are same , so both x  and y have infinite solutions.

You might be interested in
18 Emily is planting a garden. She places fence posts at
otez555 [7]
69 or 420 feet is what i think it is
4 0
2 years ago
Find the surface area of the sphere with the given dimension. Leave your answer in terms of pi.
Brrunno [24]
The surface area of the sphere:
A = 4 r² π 
1 ) r = 60 m;
A = 4 · 60² π = 4 · 3600 π = 14,400 π m²
2 ) Diameter of 14 cm:
r = 14 cm / 2 = 7 cm
A = 4 · 7² π = 4 · 49 π = 196 π cm²
5 0
3 years ago
The length of a rectangle field is represented by the expression 14 X minus 3X squared +2 Y. The width of the field is represent
Assoli18 [71]

Answer:

9x+4x^2-5y

Step-by-step explanation:

Hi there!

Length of the field: 14x-3x^2+2y units

Width of the field: 5x-7x^2+7y units

To find how much greater the length of the field is than the width, subtract the width from the length:

14x-3x^2+2y-(5x-7x^2+7y)

Open up the parentheses

= 14x-3x^2+2y-5x+7x^2-7y

Combine like terms

= 14x-5x-3x^2+7x^2+2y-7y\\= 9x+4x^2-5y

Therefore, the length is 9x+4x^2-5y units greater than the width.

I hope this helps!

7 0
2 years ago
Find the value of 7×+2y when x=2and y=-9
jeka94
The answer should be -4,
7x2=14
2x-9=-18
14+ -18= -4
6 0
3 years ago
Multiply <br> (5x-1)(6x^2+3x+7)<br><br> SHOW WORK
notsponge [240]

sorry for using printed paper, I tried my best to avoid the lines

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is 16+24 out of 30_22
    12·2 answers
  • PLEASE HELP WITH BOTH PARTS!!!!!!!! WILL BE MARKED BRAINLIEST!
    11·1 answer
  • CAN SOMEONE PLEASE HELP ME! To find x<br><br> ANSWERS<br> A-(11)<br> B-(14)<br> C-(7)<br> D-(3)
    7·1 answer
  • Two laboratory technicians are running product quality tests. One technician takes 6 minutes less than the
    10·1 answer
  • Given rectangle. Find area of trapezoid. (4 points)
    5·2 answers
  • I’ll give the Brainliest to who answers these questions with a reasonable explanation.
    8·2 answers
  • The body temperature in Fahrenheit of a sheep is modeled by the equation T=0.6sin(π28(t−9))+101.6, where t is the number of hour
    14·1 answer
  • -3/8 divided by -2/3
    9·2 answers
  • The value of X is units in length.
    15·1 answer
  • PLEASE HELP ME FOR BRAINLIEST AND 30 POINTS PLS
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!