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2 years ago

PLS HELP

Mathematics

1 answer:

german2 years ago

3 0

Answer:

1. $250,000× 6,5%= $16,250

$310,000×6,5% = $20,150

therefore $16,250+$20,150=$21,800

991,000 times ×$1,09×15% = $162,028.5

Step-by-step explanation:

3. $8,870×25%=$2217,50

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Write a simplified expression to find the perimeter of a square with a side length of 3y units.

Murrr4er [49]

Answer:

Perimeter= 12y units

3y(4) = 12y

Step-by-step explanation:

3y + 3y + 3y + 3y= 12y

4 0

2 years ago

nikhil has RS 80000 from this,he gives 30% to his wife and 20% to his father. Find the amount received by wife and father

muminat

Answer:

Amount received by wife = RS 24000

Amount received by father = RS 16000

Step-by-step explanation:

His income is RS 80000

He gave 30% of his income to his wife

That's

$\frac{30}{100} \times RS \: \: 80000$

Which is RS 24000

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$\frac{20}{100} \times RS \: \: 80000$

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Hope this helps you

8 0

2 years ago

Read 2 more answers

Which statement describes if there is an extraneous solution to the equation √x-3 = x-5? A. there are no solutions to the equati

Brrunno [24]

Remember that an extraneous solution of an equation, is the solution that emerges from solving the equation but is not a valid solution.

Lets solve our equation to find out what is the extraneous solution:
 $\sqrt{x-3} =x-5$
$(\sqrt{x-3})^2 =(x-5)^2$
$x-3=x^2-10x+25$
$x^2-11x+28=0$
$(x-4)(x-7)=0$
$x-4=0$ and $x-7=0$
$x=4$ and $x=7$

So, the solutions of our equation are $x=4$ and $x=7$ . Lets replace each solution in our original equation to check if they are valid solutions:
- For $x=7$
$\sqrt{x-3} =x-5$
$\sqrt{7-3} =7-5$
$\sqrt{4} =2$
$2=2$
We can conclude that 7 is a valid solution of the equation.

- For $x=4$
$\sqrt{x-3} =x-5$
$\sqrt{4-3} =4-5$
$\sqrt{1} =1$
$1 \neq 1$
We can conclude that 4 is not a valid solution of the equation; therefore, 4 is a extraneous solution.

We can conclude that the correct answer is: D. the extraneous solution is x = 4

7 0

2 years ago

6x-5y=5 3x+5y=4 The x-coordinate of the solution to this system of equation is

Anna35 [415]

Answer:

x=1

Step-by-step explanation:

1) 6x-5y=5

2) 3x+5y=4

ets perform the following operation

1) +2), This leads to the following equation:

6x+3x-5y+5y=5+4

From where we obtain the solution for x

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3 years ago

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mixas84 [53]

Answer:

La división de dos números enteros es igual al valor absoluto del cociente de los valores absolutos entre el dividendo y el divisor, y tiene de signo, el que se obtiene de la aplicación de la regla de los signos.

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3 years ago