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lora16 [44]
3 years ago
7

the Marked price of a book is rupees 500 if 30% discount is all over there in a loss of rupees hundred is made what is the cost

price of the book​
Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
8 0

Answer:

cost price of book is Rs. 570

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What number makes the equation true? Enter the answer in the box.<br> 3<br> X<br> = 27
VARVARA [1.3K]

Answer:

9

Step-by-step explanation:

easy question, 3x9=27

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3 years ago
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A ladder that is 21 feet long is propped against a building. The bottom of the ladder was placed 4 feet from the base of the bui
solmaris [256]

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Step-by-step explanation:

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Find the sum of a finite geometric sequence from n = 1 to n = 7, using the expression −4(6)n − 1.
Verizon [17]

Answer:

<h2>-223,948</h2>

Step-by-step explanation:

The formula of a sum of terms of a gometric sequence:

S_n=a_1\cdot\dfrac{1-r^n}{1-r}

a₁ - first term

r - common ratio

We have

a_n=-4(6)^{n-1}

Calculate a₁. Put n = 1:

a_1=-4(6)^{1-1}=-4(6)^0=-4(1)=-4

Calculate the common ratio:

r=\dfrac{a_{n+1}}{a_n}\\\\a_{n+1}=-4(6)^{n+1-1}=-4(6)^n\\\\r=\dfrac{-4(6)^n}{-4(6)^{n-1}}=6^n:6^{n-1}\\\\\text{use}\ a^n:a^m=a^{n-m}\\\\r=6^{n-(n-1)}=6^{n-n+1}=6^1=6

\text{Substitute}\ a_1=-4,\ n=7,\ r=6:\\\\S_7=-4\cdot\dfrac{1-6^7}{1-6}=-4\cdot\dfrac{1-279936}{-5}=-4\cdot\dfrac{-279935}{-5}=(-4)(55987)\\\\S_7=-223948

7 0
4 years ago
Can I get help with this? Easy points!
givi [52]

9514 1404 393

Answer:

  • maximum: 0
  • minimum: -16

Step-by-step explanation:

A graphing calculator can quickly show you the boundaries of the feasible region, and can calculate the values of the objective function.

3 0
3 years ago
Please help. I’ll mark you as brainliest if correct!!!!! <br> ON B!
k0ka [10]

Answer:

5 dollars

Step-by-step explanation:

multiply 100 and 1.25 and get 125 then 130 minus 125 is 5 hope this helps god bless

7 0
3 years ago
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