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3 years ago

If 14 is scaled down by a factor of 1/10ths what is it?

Mathematics

1 answer:

Oliga [24]3 years ago

7 0

Answer:

1.4 and 430

Step-by-step explanation:

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Alvin's age is three times Elgas age. The sum of their ages is 36. What is Elgas age?

olchik [2.2K]

Answer:

Elgas is 9 years old.

Step-by-step explanation:

Alvin: 3 x Elgas

36: Alvin + Elgas

36 / 4 : 9

Elgas: 9

Alvin: 27

To check: 27 + 9= 36

3 0

3 years ago

Hiiiiiiiiiiiiiiiiii Need helpppppppppppp

kirill115 [55]

Answer:

Step-by-step explanation:

Angles around a point add up to 360

x + 53 + 37 + 139 = 360

x + 229 = 360

x = 360 - 229

x = 131

7 0

3 years ago

What are the coordinates of point R?

Klio2033 [76]

Answer:

The last one (-1,5)

Step-by-step explanation:

From (0,0), the R coordinate is one to the left meaning the x is negative and five up which means the y is positive 5 so... (-1,5) is the new location of R.

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3 years ago

How does the speed of one car relative to the other compare with speed of the car relative to the ground?

yulyashka [42]

(n-1)-3 = (3n)/2 This is the equation used to represent the information given

8 0

3 years ago

The amount of time Ricardo spends brushing his teeth follows a Normal distribution with unknown mean and standard deviation. Ric

Papessa [141]

Let $X$ denote the number of minutes spent brushing his teeth, and let $\mu$ be the mean and $\sigma$ the standard deviation for this distribution.

$\mathbb P(X$

The z-score corresponding to this probability is approximately $z=-0.2533$ , which means

$\dfrac{1-\mu}\sigma=-0.2533\iff\mu-0.2533\sigma=1$

Next, (note the sign change)

$\mathbb P(X>2)=0.02\implies\mathbb P(X\le2)=\mathbb P\left(\dfrac{X-\mu}\sigma\le\dfrac{2-\mu}\sigma\right)=0.98$

The corresponding z-score is approximately $z=2.0538$ , so you have

$\dfrac{2-\mu}\sigma=2.0538\iff\mu+2.0538\sigma=2$

Solving the two equations for $\mu$ and $\sigma$ , you'll find that the mean is approximately $\mu=1.1098$ and the standard deviation is approximately $\sigma=0.4334$ .

7 0

3 years ago