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12345 [234]
3 years ago
6

Help me to solve this Question a) In a restaurant, you and your friends had three plates of Mo:Mo at Rs 90 per plate, and

Mathematics
1 answer:
scoray [572]3 years ago
6 0

three plate of Momo cos 90 Rupees one plate cost 19/3 which is 30 then 3 bottle of cold drink cost three x 30 which is 90 total is 120 so 10% service search is 120 didvided by 100 multiplied by 10% which is 12 rupees service charge that is 12 divided by 100 x 13 is 1.56 so first year is says that calculate the service to the service charge is 12 rupees and how much is the vat amount is 1.56 as we do 12 divided by 100 multiply by 13 then it says and how much you need to pay so we need to pay 120 + 1.56 which 121.56 thank you

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Help me with these questions
Elena L [17]

Answer: a = 4, b = 163,422

<u>Step-by-step explanation:</u>

P = P_{0} e^{kt}   P is the new population, P₀ is the initial population, k is the growth rate, t is the time elapsed.

Part a) What do we know?

P = 7003

P₀ = unknown

k = .21 <em>(converted 21% into a decimal)</em>

t = 36 yrs <em>(2006 - 1970) </em>

P = P_{0} e^{kt}   <em>need to solve for P₀</em>

7003 = P_{0} e^{(.21)(36)}

7003 = P_{0} e^{7.56}

7003 = P₀ (1920)

\frac{7003}{1920} = P_{0}

3.6 = P₀

rounded to the nearest whole number = 4

Part b) What do we know?

P = unknown

P₀ = 7003

k = .21 <em>(converted 21% into a decimal)</em>

t = 15 yrs <em>(2021 - 2006) </em>

P = P_{0} e^{kt}   <em>need to solve for P₀</em>

P = 7003 e^{(.21)(15)}

P = 7003 e^{3.15}

P = 7003(23.33)

P = 163,422.46

rounded to the nearest whole number = 163,422

*************************************************************

Answer: 2, -1

<u>Step-by-step explanation:</u>

eˣ² = eˣ * e²

eˣ² = eˣ⁺²

x² = x + 2

x² - x - 2 = 0

(x - 2)(x + 1) = 0

x - 2 = 0      or      x + 1 = 0

 x = 2          or         x = -1

Check both answer for validity:

eˣ² = eˣ⁺²

e⁴ = e⁴     or   e¹ = e¹

TRUE             TRUE

*****************************************

Answer: 0 = ln 1

<u>Step-by-step explanation:</u>

e^{-10} = \frac{1}{e^{10}}

ln(e^{-10}) = ln(\frac{1}{e^{10}})

-10 = ln 1 - 10   <em>log rules say division is subtraction</em>

 0 = ln 1



5 0
3 years ago
Choose the inverse of y = x2 – 10x.
ella [17]
The answer is (5,-25)
6 0
4 years ago
Read 2 more answers
In a poll of travelers, 85% said that traveling by air makes them nervous, and 450 travelers said that it does not make them ner
OverLord2011 [107]
The answer is 1,338 were polled
5 0
3 years ago
Read 2 more answers
What are two numbers that add to make 36 with one of the numbers be exactly twice the other
Tema [17]
To solve, set an equation:
First Number: x
Second Number: 2x

x+2x=36
3x=36
divide both sides by 3
x=13

First Number: (x) 12
Second Number: (2x) 24

Answers: 12 and 24
3 0
3 years ago
Read 2 more answers
What does b equal. 2/3b +19=35
tia_tia [17]

2/3b + 19 = 35

          -19    -19

----------------------

2/3b  =  16

÷2/3    ÷2/3

----------------------

b  =  24

7 0
3 years ago
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