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3 years ago

What does -3mnp equal?

Mathematics

1 answer:

dolphi86 [110]3 years ago

7 0

Answer:

3MN to N =3000000

Step-by-step explanation:

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Johnny sold crafts at a show. His prices included .07 sales tax. Johnny grossed $1236.00. What was johnny's taxable amount?

Vadim26 [7]

The taxable amount was $80.86

Step-by-step explanation:

Given,

Sales tax = .07

Total grossed = $1236.00

Let,

x be the price before sales tax, therefore,

Amount of sales tax = 0.07x

Price before sales tax + Sales tax = Total amount grossed

x+0.07x = 1236

1.07x=1236

Dividing both sides by 1.07

$\frac{1.07x}{1.07}=\frac{1236}{1.07}\\x=1155.14$

Taxable amount = Total amount grossed - Price before tax

Taxable amount = 1236 - 1155.14 = $80.86

The taxable amount was $80.86

Keywords: subtraction, addition

Learn more about subtraction at:

#LearnwithBrainly

5 0

3 years ago

Is 31 and composite or prime

sergey [27]

31 is a prime number.

4 0

3 years ago

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Use elimination to solve this system of equations. 2r + 3s= 9 and 3r + 2s= 12

timama [110]

7 0

3 years ago

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Factor using the identity: a3 + b3 = (a + b)(a2 – ab + b2) 8z3 + 27

vivado [14]

Answer: this is our required factor i.e.

$8z^3+27=(2z+3)(4z^2-6z+9)$

Explanation:

Since we have given that

$8z^3+27$

As we know the identity , which says that

$a^3+b^3=(a+b)(a^2-ab+b^2)$

So, we can use this here ,

$8z^3+27=(2z)^3+3^3\\\\=(2z+3)((2z)^2-2z\times 3+3^2)\\\\=(2z+3)(4z^2-6z+9)$

Hence this is our required factor i.e.

$8z^3+27=(2z+3)(4z^2-6z+9)$

7 0

3 years ago

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The population of a certain species of fish in a lake after t years is given by P(t)=18801 + 1.42e-0.037t. Find the horizontal a

Lunna [17]

Answer:

a) 188 fishes

b) 1259 fishes

Hope this helps!

4 0

3 years ago