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alexandr402 [8]
3 years ago
9

The ages of three cousins are consecutive even whole numbers. The sum of the youngest and oldest ages is 16. How old is the olde

st cousin?
Mathematics
2 answers:
mamaluj [8]3 years ago
3 0

the oldest cousin might be 20 years old

Liono4ka [1.6K]3 years ago
3 0

I believe the three ages are 6 8 & 10, the eldest being 10 and the youngest being 6.

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miskamm [114]

l=51

m=78

n=51

n and l have the same value since it’s an isosceles triangle, so that’s why I doubled 4x-9

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3 years ago
So I need help with this
Leona [35]

$294

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3 years ago
Read 2 more answers
Geometry/////
Montano1993 [528]

Answer:

A = 388.58 cm^2

Step-by-step explanation:

For a cone whose base has a radius R, and a hypotenuse S, the area is:

A = pi*R^2 + pi*R*S

Where pi = 3.14

In this case, we can see that the diameter is: 15cm

Then the radius, half of the diameter, is:

R = 15cm/2 = 7.5cm

The hypotenuse is 9cm, then S = 9cm

A = 3.14*(7.5cm)^2 + 3.14*(9cm)*(7.5cm) = 388.575 cm^2

Rounding to two decimal places, we need to look at the third one, which is a five, so we need to round up:

A = 388.58 cm^2

3 0
3 years ago
Solve by using elimination. Express your answer as an Ordered pair (-x +2y=3 3x-2y=7
MAVERICK [17]

Answer:

(5,4)

Step-by-step explanation:

-x+2y=3

3x-2y=7

Add the like terms( 2y and -2y)(-x and 3x)(3 and 7) together. Do this vertically. 2y and -2y cancel eachother out.

  • 2x=10

Divide both sides by 2

  • <u>x=5</u>

To find y, substitute x in for y in one of the equations

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add 5 to both sides

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Divide both sides by 2

  • <u>y=4</u>

Check:

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2 years ago
How many solutions does this system have?*
sweet-ann [11.9K]

Answer:

1 solution

Step-by-step explanation:

y =  - 3 \\ y =  -  x - 4 \\  =  >  - 3 =  - x - 4 \\  =  >  - x - 4 + 3 = 0 \\  =  >  - x - 1 = 0 \\  =  >  - x = 1 \\  =  > x =  - 1

4 0
3 years ago
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