Answer:
Step-by-step explanation:
(x+2)/2 = 1
x + 2 = 2
x = 0
(y + 8)/2 = 4
y + 8 = 8
y = 0
(0, 0)
If we call 'D' the date in January, then at the end of D, there arr. 2^D people who have heard the rumor.
2^8 = 256 .
The probability of getting grey: 2/10
The probability of getting blue: 8/10
The probability of getting blue then grey:
8/10 x 2/10
Answer 4/5
The balloon assumes the shape of a sphere with a formula of the volume equal to V = 4/3 pi r^3 where r is the radius of the balloon. In this case, we are given with volume of 288 pi in^3. We just substitute the given volume such that the resulting radius that answers the problem is 6 inches.
X/3 = x + 2/5....multiply everything by common denominator of 15
5x = 15x + 6
5x - 15x = 6
-10x = 6
x = -6/10 reduces to - 3/5
or...
x/3 is the same as 1/3x
1/3x = x + 2/5
1/3x - x = 2/5
1/3x - 3/3x = 2/5
-2/3x = 2/5
x = 2/5 * -3/2
x = - 6/10 which reduces to - 3/5
