Answer:
Step-by-step explanation:
<u>Ratio of string and charms:</u>
- 1/4 yard of string ⇒ 10 charms
- 9/10 yard of string ⇒ x
<u>Solve by cross-multiplication</u>
- x = 10*9/10 ÷ 1/4
- x = 36 charms
<u>The fraction of all charms to number of used:</u>
Since there are 4 Jacks in the deck and 52 cards, the first time you draw a card the chances are 4/52 that you will draw a Jack. Now that you have drawn a Jack, there are only 3 left in the deck so now the probability of drawing another Jack is 3/52. The next Jack will be 2/52. To get the probability that this will happen, we multiply the 3 fractions together...
4/52 * 3/52 * 2/52 = 24/140,608 = .00017 or .017%
Answer:
Step-by-step explanation:
Well they add up to a straight line which would be 180 degrees. That means 40, 6x+2 and 90 all add up to 180
40 + 90 + 6x + 2 = 180
Answer:
(8-5)*(6+7+(8-6)+(7-5))
Step-by-step explanation:
Answer:
16.6 in
Step-by-step explanation:
The volume (V) of a pyramid is
V = 
area of base × h
where h is the perpendicular height and area of base = 14² = 196
here V = 980, so
× 196h = 980 ( multiply both sides by 3 )
196h = 2940 ( divide both sides by 196 )
h = 15
Consider the right triangle formed by the height h from the vertex to the midpoint of the base and the slant height (s) ← the hypotenuse
Using Pythagoras' identity in the right triangle
s² = 15² + 7² = 225 + 49 = 274 ( take the square root of both sides )
s = 
≈ 16.6
