The chance of getting an even number for 1 roll is 1/2 ( half the numbers are even.)
For 3 times in a row:
1/2 x 1/2 x 1/2 = 1/8
The answer is 1/8
z = 8 + 6x - px Subtract 8 from both sides
z - 8 = 6x - px Factor the x out of 6x - px
z - 8 = x (6 - p) Divide both sides by (6 - p)
= x Switch the sides to make it easier to read
x = <span>
</span>
9514 1404 393
Answer:
62, 64, 66
Step-by-step explanation:
I like to work "consecutive integer" problems by considering the average, or middle value. If we call that x, then the problem statement tells us ...
(x -2) +(x +2) = 128
2x = 128 . . . . . collect terms
x = 64 . . . . . . . divide by 2
The middle integer is 64, so the three even integers are 62, 64, 66.
Answer: $ 1760
Step-by-step explanation:
Using the formula for calculating amount :
, since it is compounded monthly
A = amount
P = principal
r = rate %
n = number of years
substituting into the formula , we have
1820.30 =
1820.30= P (
1820.30 = P( 1.)
Therefore:
P = 1820.30 / 1.033747661
P = $ 1760
Answer: 60 test tubes
Step-by-step explanation: 41.4/60 = 0.69