Before I answer your question, what does "dm3" means?
4x - 2y = 22
Start by adding 2y to both sides to cancel out the -2y
4x = 22 + 2y
Now you can divide by 4
x = 22/4 + 2y/4
Reduce all the fractions to get your answer, which is

Answer:
0.368
Step-by-step explanation:
Number of red marbles= 3
Number of blue marbles= 4
Number of green marbles= 7
Total number of marbles= 3+4+7= 14
Let the first ball is taken out to be red
P(R)=
than again a second ball is drawn, number of balls left= 14-1=13
Number of red= 2
P(R)=
Total probability=
+
Total probability= 0.368
Hence, the correct answer is 0.368
Answer:
1040
Step-by-step explanation:
Circumference of the Circle: 439.82
Add that to the length of the rectangle time two: 439.82+(300x2)
That will give you the perimeter around the entire track:
439.82+(300x2)
439.82+600
1039.82
Rounded that is: 1040
<em>Hope this Helps :)</em>
Composite number is made up of 2 or more prime numbers
a prime number is only made up of itself and 1
composite and prime numbers are like oposites
a prime is not a composite but it is a prime number
confusing quesiton