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leva [86]
2 years ago
15

What is 3.1 converted into a simplified fraction?

Mathematics
1 answer:
BartSMP [9]2 years ago
5 0

Answer:

31/10

Step-by-step explanation:

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The temperature outside was 60 degrees when Sarah woke up. By noon, it had increased to 75 degrees. Find the percent increase in
DochEvi [55]
Temp1 = 60
Temp2 = 75
Temp2 - Temp1 = 15

Difference = (Temp2 - Temp1) / Temp1
Difference = 15 / 60 = 1 / 4 = 0.25
Percentage difference = difference * 100% = 0.25 * 100% = 25%
7 0
3 years ago
7+4(r+3)=9r-6<br> show work pls AND HELP ASAP
ivanzaharov [21]

\:  \:  \:  \:  \:  \:

=  \:  \:  \:  \: r = 5

Step-by-step explanation:

7 + 4(r + 3) = 9r - 6

  • <em><u>distribute</u></em><em><u> </u></em>4 through the parentheses

7 + 4r + 12 = 9r - 6

  • add numbers

19 + 4r = 9r - 6

  • move the <em><u>variable</u></em><u> </u>to the left hand side and change its sign

19 + 9r =  - 6

  • move the <em><u>constant </u></em>to the right hand side and change its sign

4r - 9 =  - 6 - 19

  • collect<em><u> like</u></em><em><u> terms</u></em>

<em><u>- 5r =  - 6 - 19</u></em>

  • calculate the difference

- 5r =  - 25

  • divide both sides of the equation by <em>-</em><em>5</em>

<em>=  \:  \:  \:  \: r = 5</em>

<h2><em><u>hope</u></em><em><u> it</u></em><em><u> helps</u></em></h2>
7 0
2 years ago
Elizabeth and Markus are playing catch. Elizabeth throws the ball first. The height of the ball can be modeled by the equation h
astra-53 [7]

Answer:

h=-5(16t-144t-7)

Step-by-step explanation:

5 0
3 years ago
If the equation of the regression line for the data set (3,4), (6,2), (9,18) is , what is the sse for the data set?
Licemer1 [7]

Answer:

38.9

Step-by-step explanation:

Lets say, first number = x


Second number = 3x+7


Total = 49



(x)+(3x+7)= 49


4x+7 = 49


4x = 42


x = 42/4


x= 10.5



x= 10.5


3x+7 = 3(10.5)+7 = 38.9



Hope this helps!!

3 0
3 years ago
R = rmax (1-N/K) <br><br> i don’t understand??
butalik [34]

As given r = r(max)/2

k= 50

r(max) = 0.5

By substituting the values,

r= 0.5/2 = 0.25

You have to use following equation to get a value of N

r = r(max) ( 1- N/K)

N/k = 1 - r/r(max)

N/K = 1 - 0.5 = 0.5

N= 50 × 0.5 = 25

6 0
3 years ago
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