Answer:
25/169
Step-by-step explanation:
We have 13 marbles ( 5+6+2)
P (blue ) = blue marbles/ total marbles = 5/13
P (blue ,blue) = 5/13* 5/13 since the marble is replaced
= 25/169
Answer:
x = 9 1/3
Step-by-step explanation:
We can use the ratios of similar triangles to solve
x 7
----------- = ------------
x+8 13
Using cross products
13x = 7(x+8)
Distribute
13x = 7x+56
Subtract 7x from each side
13x-7x = 7x+56-7x
6x = 56
Divide each side by 6
6x/6 = 56/6
x= 28/3
x = 9 1/3
Answer:
$ 637.17
Step-by-step explanation:
First, let's convert the interest per year (iy) to interest per month (im):
(1 + im)¹² = 1 + iy
(1 + im)¹² = 1 + 0.08
1 + im =
1 + im = 1.00643
im = 0.00643
im = 0.643%
The total amount (A) of an investment is:
Where R is the amount invested per month, and n the number of monthes. So:
10,000 = R*15.6943
R = $ 637.17
<h2>They mark-up the price by <u>$13.20</u></h2><h3>The new price is $79.20 (If you need that information)</h3><h3><u /></h3><h3>66 x 0.20 = 13.20</h3><h3>The new price:</h3><h3>13.20 + 66 = 79.20</h3><h3 /><h3><em>Please let me know if I am wrong.</em></h3>