Answer:
39/40
Step-by-step explanation:
Since 39 out of 40 marbles are green, the probability of randomly choosing green is 39/40.
However, the probability becomes 100% when you look into the bag and choose a green marble. (Unless you are blind or unable to distinguish blue from green, in which case the probability remains 39/40.)
To solve for how much it would cost, we have to solve for the volume of the slab first, then multiply it by the given price of concrete.
Solving for the volume of the slab:
Since the given price is in cubic yard, it is easier to convert the given measurements from feet to yards first. Using the relation: 1 ft = 0.333 yd:
17 ft = 5.67 yards
2 ft = 0.67 yards
17ft x 17ft x 2ft = 5.67 yd x 5.67 yd x 0.67 yd = 21.54 yd^3
Multiplying this by $40.00 / yd^3:
21.54 x 40 = 861.59
Therefore, it will cost $861.59 to pour the slab.
Answer:
the surface area of the prism = <em>378</em> cm³
Step-by-step explanation:
Let S be the surface area of the prism
B be the base of the prism
h be the height of the prism
T be the lateral surface area of the prism
_______
Formula
S = 2B + T
_________
Answer:
$736.45/$33.02 = 22.30 high tech
x($33.02) = $736.45
$736.45/$18.55 = 39.70 older models
y($18.55) = $736.45