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Anuta_ua [19.1K]

3 years ago

8

I’m not sure of how to do this. Pls help

1 answer:

Semmy [17]3 years ago

3 0

Just divide. 3/4 is 3 divided by 4= .75
75 hundredths is the same as 75%
20/100 20 divided by 100=.20 which is 20%
14 divided by 25 is .56, or 56%
1/5 is 1 divided by 5 = .20 or 20 %

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How do you do y divided by 9=12?

mina [271]

1=9/12
1=3/4
if you want this

8 0

3 years ago

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the Kimball family. is going on a biking trip next they went to bike to Baltimore 27 1/2 mile away from their home they only wan

Juli2301 [7.4K]

Answer:

It takes 1.5 days for the Kimball family to get to Baltimore

Step-by-step explanation:

Given:

Total distance from the home to Baltimore = $27 \frac{1}{2}$

Distance they would travel on each day = $18 \frac{1}{8}$

To Find:

How many days it will take the Kimball family to reach Baltimore = ?

Solution:

Lets first convert mixed fraction into fraction

$27 \frac{1}{2}$ = $\frac{2 \times 27 + 1}{ 2}$ = $\frac{54+1}{2}$ = $\frac{55}{2}$

$18\frac{1}{8}$ = $\frac{18 \times 8 +1 }{8}$ = $\frac{144+1}{8}$ = $\frac{145}{8}$

Now,

In one day = $\frac{145}{8}$

In x day = $\frac{55}{2}$

By Cross multiplication

$\frac{55}{2} = x \times \frac{145}{8}$

$x = \frac{55}{2} \times \frac{8}{145}$

$x = \frac{220}{145}$

$x = \frac{44}{29}$

x = 1.517

x = 1. 5 days

8 0

3 years ago

An adult can lose or gain two pounds of water in the course of a day. Assume that the changes in water weight are uniformly dist

Levart [38]

Answer:

Standard deviation of the weight over a day is 1.15

Step-by-step explanation:

Since it is given that water weight is uniformly distributed between -2 to 2.

So applying formula for variance of uniformly distribution as follows,

$variance=\dfrac{\left (b-a\right )^{2}}{12}$

From the given data, values of a and b is , $a=-2$ , $b=2$ ..

Substituting the values,

$variance=\dfrac{\left (2-\left (-2 \right )\right )^{2}}{12}$

Now, $-\left ( -2 \right )=2$

$variance=\dfrac{\left (2+2\right )^{2}}{12}$

$variance=\dfrac{\left (4\right )^{2}}{12}$

$variance=\dfrac{16}{12}$

Dividing the fraction by 4,

$variance=\dfrac{4}{3}$

So, the value of variance is $\dfrac{4}{3}$

The formula for standard deviation is given as,

$Standard\:deviation=\sqrt{variance}$

Substituting the value,

$Standard\:deviation=\sqrt{\dfrac{4}{3}}$

$Standard\:deviation=1.15470$

Rounding to 2 decimal places,

$Standard\:deviation=1.15$

So, the value of standard deviation is 1.15.

4 0

3 years ago

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Please explain the steps to answer this<br> 2|6y-4|-3=7

dem82 [27]

First you need to do the distributive property
2|6y-4|-3=7
12y +8 -3 =7 then you combine like terms
12y + 5 =7 then you subtract 5 from 7
12y=2 then divide by 12
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8 0

3 years ago

Find the size of the angle 3x.<br><br> 3x=

pav-90 [236]

Answer:

60 degrees

Step-by-step explanation:

a straight line is 180 degrees

2x= 120 degrees

x=60 degrees

5 0

3 years ago

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