Answer:
Ohn has paid $5730 in first 20 installments
Step-by-step explanation:
As per the question Ohn payed the first installment =$100
Next month Ohn payed the installment = 1.1×$100
Similarly subsequent installment =1.1×1.1×$100
So we can write first 20 installments as
⇒100+100×1.1+100×1.1²+100×1.1³.........+100×
And we know in geometric series
1+x²+x³+...........
= (1-
)÷(1-x)
Therefore sum of first 20 installments will be
⇒100(1+1.1²+1.1³............ =(1- )÷(1-1.1)
= 100(1-6.73)÷(-.1)
=100×5.73÷.1
= $5730
So Ohn has paid $5730
Answer:
Installment credit
Step-by-step explanation:
Installment credit, is a type of loan in which you borrow a fixed amount of money and once you get it, you agree on repaying it in installments on monthly basis until the loan is fully repaid.
Answer:
constant of variation
Step-by-step explanation:
Constant of variation and constant of proportionality mean the same and they are used in variations.
For instance:
In the above equation, y varies directly as x and the constant of proportionality or variation is 2.
<em>It is often represented with k (though, other alphabets can also be used)</em>
Answers:
1/2a= 8
Multiply by 2/1 on both sides
1/2(2/1)a= 8(2/1)
Cross out 1/2 and 2/1 equals to a
a= 16
4n= 32
Divide by 4 for both sides
4n/4= 32/4
n= 8
3x= 36
Divide by 3 for both sides
3x/3= 36/3
x= 12
m/3= 2
Multiply by 3/1 for both sides
3/1*m/3= 2(3/1)
Cross out 3/1 and 3 becomes m
m= 6
x-8= 12
Move -8 to the other side. Sign changes from -8 to +8
x-8+8= 12+8
x= 20
48= 3k
Divide by 3 for both sides
48/3= 3k/3
k= 16
13/b= 0
Multiply by 1/13 for both sides.
13/b( 1/13)= 0(1/13)
b= 0
39= 13y
divide by 13 for both sides
39/13= 13y/13
y= 3
Answer:
P(XX) = 69/190
Step-by-step explanation:
Given:
20 balls, 10R, 3B, 7W.
Two taken without replacement.
Find probability of two identical colours.
P(XX)
Solution:
We use the multiplication rule for the probability of each of the 2 draws
P(RR) = 10/20*9/19 = 90/380
P(BB) = 3/20*2/19 = 6/380
P(WW) = 7/20*6/19 = 42/380
Probability of drawing two identical coloured balls
P(XX) = (90+6+42)/380 = 138/380 = 69/190
