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
dalvyx [7]
3 years ago
13

Answer asap only if you know

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
3 0
3x+2y=21

•add -2y to both sides
3x+2y=21
-2y -2y
3x= -2y+2y
•then divide both sides by 3
3x/3 = -2y+21/3
•your answer:
x=-2/3y+7


x-4y=-7

•add 4y to both sides
x-4y=-7
+4y +4y
•your answer:
x=4y-7
You might be interested in
Ax+By=C <br> Can you guys solve this please and explain how you did it.
OleMash [197]
What variable are you solving for?
3 0
3 years ago
There is a bag with 6 marbles. Three marbles are blue, 2 are red and 1 is green. What is the probability that you will randomly
Dominik [7]

Answer:

Mike is not correct.

Step-by-step explanation:

The probability is an "out of" statement. meaning out of all 6 marbles if 2 are red how what is the probability of choosing a red marble the answer is 2 out of 6 or 1/3 or 0.3333333etc. For green the probability is 1 out of 6 or 1/6 or 0.16666666etc

8 0
3 years ago
Please help me .
Margarita [4]

Answer:

(2x + 3)(x - 2)

Step-by-step explanation:

use FOIL

First, Outside, Inside, Last

2x x x = 2x²

2x x -2 = -4x

3 x x = 3x

3 x -2 = -6

2x² - 4x + 3x - 6

5 0
2 years ago
A coin is tossed two times. what is the probability of getting tails two times in a row?
goldfiish [28.3K]
It's a conditional probability: (We know that the probability of getting 1 tail or 1 head is equal to 1/2)

Probability ( Tail AND Tail) = 1/2 x 1/2 = 1/4
5 0
3 years ago
The volume of a sphere is 113.1 cm3; find the diameter of the sphere.
Dennis_Churaev [7]

Answer:

del

Step-by-step explanation:

d

7 0
2 years ago
Other questions:
  • What is number pattern
    6·1 answer
  • Radius = 11 cm.; Height = 10 cm.
    14·1 answer
  • A number is multiplied by 5 and the results is twice the number added to 2 find the number<br>​
    12·1 answer
  • Find the quotien of 26,234 divide 42
    11·1 answer
  • Question: 2
    5·1 answer
  • Please help.
    13·1 answer
  • Find the missing side of the triangle. no links​
    15·1 answer
  • 2(x + 3) = x - 4 <br>And <br>4(5x-2)=2(9x+3)<br>​
    14·1 answer
  • If u have 365 red and 4875 =
    9·1 answer
  • 1) A 60 cm length of wire is used to form a rectangle. The
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!