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BlackZzzverrR [31]

2 years ago

9

the ages of six boys are given as 12 years 3 months, 18 years, 13 years 7 months, 17 years 2 months 15 years and 14 years respec

tively. what is their average age?

1 answer:

dusya [7]2 years ago

4 0

Answer:

15 years (180 months)

Step-by-step explanation:

turn it into months first

147

216

163

206

180

168

add them together, then divide by how many there are

1,080/6=180 months

180/12 =15

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Solve for x. Leave your answer in simplest radical form.

pochemuha

Answer:

x = 4√7

Step-by-step explanation:

You can use the pythagorean theorem which is a² + b² = c²

if you plug it in, it would be...

x² + 12² = 16²

x² + 144 = 256, subtract 144 to both sides

x² = 112, square root both sides to make x by itself.

x = 4√7

6 0

3 years ago

A yacht that travels 1.375 km in 165 minutes expressed in km/h

Tomtit [17]

The speed of a yacht traveling a distance of 1.357 km in 165 minutes is 0.5 km/h

<h3>What is Speed?</h3>

The speed of an object is the distance covered by the object in respect to time.

Mathematically:

$\mathbf{Speed = \dfrac{distance}{time}}$

$\mathbf{Speed = \dfrac{1.375 \ km}{165 minutes }}$

We know that 60 minutes = 1 hour
165 minutes = 2.75 hours

$\mathbf{Speed = \dfrac{1.375 \ km}{2.75 \ hours}}$

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Learn more about calculating speed here:

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2 years ago

The graph of y = x^2 is translated 3 units to the left. The equation for this new graph is:

EastWind [94]

The answer is:
C. Y=(x+3)^2

7 0

2 years ago

I justify whether the expression -4x-8 is equivalent to -2(x+1)-2(x+3) by letting x=3 in both expressions. What is the value of

zubka84 [21]

Substituting x = 3 into the first expression:

-4(3) - 8 = -12 - 8 = -20

Substituting x = 3 into the second expression:

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3 years ago

How can-9 4/5<br> be expressed as the sum of its integer and fractional parts?

Rufina [12.5K]

Answer:

D is the answer because it make since to me

Step-by-step explanation:

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8 0

2 years ago