Answer:
The rate of interest is 9%.
Step-by-step explanation:
Given that the formula for simple interest is I = (P×R×T)/100 where I represents interest, P is principle, R is rate interest and T is number of years. So you have to substitute the values into the formula :
![i = \frac{prt}{100}](https://tex.z-dn.net/?f=i%20%3D%20%20%5Cfrac%7Bprt%7D%7B100%7D%20)
![let \: i = 360,p = 4000,t = 1](https://tex.z-dn.net/?f=let%20%5C%3A%20i%20%3D%20360%2Cp%20%3D%204000%2Ct%20%3D%201)
![360 = \frac{4000 \times r \times 1}{100}](https://tex.z-dn.net/?f=360%20%3D%20%20%5Cfrac%7B4000%20%20%5Ctimes%20r%20%5Ctimes%201%7D%7B100%7D%20)
![36000 = 4000r](https://tex.z-dn.net/?f=36000%20%3D%204000r)
![\frac{36000}{4000} = r](https://tex.z-dn.net/?f=%20%5Cfrac%7B36000%7D%7B4000%7D%20%20%3D%20r)
![r = 9](https://tex.z-dn.net/?f=r%20%3D%209)
Y/(X•grams), find the total cost of the gold, then use y to divide the whole thing.
Step-by-step explanation:
27/100 is the fraction of 0.27
Answer:
39 pieces
Step-by-step explanation:
Because 32 plus 42 makes 74 and 74 minus 35 makes 39
The given equation is:
x = - 2i – 10
Calculating for values of i = 1 to 12
x (1) = -2 – 10 = -12
x (2) = -4 – 10 = -14
x (3) = -6 – 10 = -16
x (4) = -8 – 10 = -18
x (5) = -10 – 10 = -20
x (6) = -12 – 10 = -22
x (7) = -14 – 10 = -24
x (8) = -16 – 10 = -26
x (9) = -18 – 10 = -28
x (10) = -20 – 10 = -30
x (11) = -22 – 10 = -32
x (12) = -24 - 10 = -34
Getting the sum of all:
<span>12th partial sum = -276</span>