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Vera_Pavlovna [14]
3 years ago
13

The total age of 5 children aged 3 years is 50 years. Find the age of the youngest and oldest child?​

Mathematics
1 answer:
Umnica [9.8K]3 years ago
8 0

Given:

Consider the total age of 5 children with age difference 3 years is 50 years.

To find:

The age of the youngest and oldest child.

Solution:

Let the ages of the 5 children are x-6, x-3, x, x+3, x+6.

Sum of their ages is 50 years.

(x-6)+(x-3)+x+(x+3)+(x+6)=50

5x=50

x=\dfrac{50}{5}

x=10

The age of the youngest child is

10-6=4

The age of the oldest child is

10+6=16

Therefore, the age of youngest child is 4 years and the age of the oldest child is 16 years.

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The equation becomes:

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On the left side, combine “like terms” through addition.

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Finally, get x alone by dividing both sides by 7:

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What is the equation of the circle with center (−3, 1) that passes through the point (−5, 3)?
Mariulka [41]

Answer:

( x + 3)^2 + ( y - 1)^2 = 8

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The equation of a circle with a center and a point

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( x , y) - any point on the circle

( a, b) - center of the circle

r^2 - radius of the circle

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a = -3

b = 1

( -5 , 3) - point - ( x, y)

x = -5

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Step 1: substitute the center into the equation

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Step 2 : sub the point into the equation

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4 + 4 = r^2

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Step 3 : sub the radius into the equation

( x + 3)^2 + ( y - 1)^2 = r^2

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Therefore, the equation of the circle is

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6 0
3 years ago
In a right triangle, the acute angles measure 2x+50 and 3x degrees
xenn [34]
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sweet-ann [11.9K]

Answer:

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x = -2  or  x  = -4

6 0
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