S. P. with VAT Discount = 10% of M. P.
10
100
X Rs 6,000
Rs 600
Rs 6,210 which is
given in the question.
required amount of discount is Rs 600.
ative process
P. with 15% VAT Rs 6,210
P. without VAT
= Rs x
Again,
Let M. P. of the watches be Rs y.
Then, S. P.
M. P. - D% of M. P.
or
5,400 = y - 10% of y
ог,
,
Rs 6,000
i. e. M. P. = Rs 6,000
X + 1596 of x
= Rs 6,210
Х
= Rs 5,400
S. P.
-
Rs 5,400
iscount = 10% of M. P. 10% of Rs 6,000 = Rs 600
- 8: A watch was sold on its marked price at a gain of 20%. But allowing 5%
discount, there would have been a gain of Rs 490. Find the cost price of the
watch.
Answer checking:
P of the watch be Rs x.
C. P. = Rs 3,500
M. P. S. P. = 120% of Rs 3,500
(S. P.), of the watch is also Rs x
1% profit, 120% of C. P. = (S. P.).
= Rs 4.200​

asdfghkl

step-by-step explanation:

asdfghkl

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.

x^2 + 81

we can factor this using difference of square binomials.

rewrite the equation:

x^2 - (-81)

factor:

(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)

(x^2 - (-81) = (x + √-81)(x - √-81)

we can remove the - from under the radical by multiplying it by i.

(x^2 - (-81) = (x + i√81)(x - i√81)

(x^2 - (-81) = (x + 9i)(x - 9i)

we can check our answer by using foil:

x^2 - 9ix + 9ix - 81i^2

x^2 - 81^2

i^2 = -1

x^2 + 81