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Vlada [557]
3 years ago
13

Irene is training for the 200-meter dash. Yesterday she ran the dash in 31 37/100 seconds. Her goal is to run the dash in 28 1/1

0 seconds. By how many seconds must Irene reduce her time in order to reach her goal?
Show Your Work!
Mathematics
1 answer:
Maru [420]3 years ago
7 0

Answer:

3 27/100

Step-by-step explanation:

set up an equation

31 37/100-a= 28 1/10

                a= 3 27/100

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What is the constant of proportionality between y and x in the graph?
FinnZ [79.3K]

Answer:

4

Step-by-step explanation:

Constant of proportionality refers to the slope of the line in this case, the slope of the line is (4-0)/(1-0)=4

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What is the general term for the sequence 1,6,11,16,...?<br><br> n + 5<br> 5n - 4<br> 5n + 1
juin [17]
5n-4
Just plug numbers into it. Make this a table.
n 0 1 2 3 
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4 0
3 years ago
Read 2 more answers
Can Some one please help me on these math questions<br><br>I'll give 20 points please
MArishka [77]

Answer:

☐ -2 < 2x + 4

☐ -3x - 2 > 5

Step-by-step explanation:

-3x - 2 > 5

+ 2 + 2

___________

-3x > 7

___ ___

-3 -3

x < -2⅓ [Anytime you <em>divide</em> or <em>multiply</em> by a negative, reverse the inequality symbol.]

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-4 - 4

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-6 < 2x

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2 2

-3 < x

If you plug in -3 for <em>x < -2</em><em>⅓</em><em>,</em><em> </em>you will see that it is a genuine statement because the more higher a negative gets, the lesser the integer will be, so in this case, -3 IS <em>less</em><em> </em><em>than</em><em> </em>-2⅓.

I am joyous to assist you anytime.

** If it is not multi-select, then choose <em>-2 < 2x + </em><em>4</em><em>.</em>

4 0
3 years ago
What two numbers multiply to get 25 and add to -10
SOVA2 [1]
x;\ y-the\ numbers\\\\  \left\{\begin{array}{ccc}xy=25\\x+y=-10&\to x=-10-y\end{array}\right\\\\subtitute:\\(-10-y)y=25\\(-10)(y)-y(y)=25\\-10y-y^2=25\\-y^2-10y-25=0\ \ \ \ |change\ the\ signs\\y^2+10y+25=0\\y^2+5y+5y+25=0\\y(y+5)+5(y+5)=0\\(y+5)(y+5)=0\\(y+5)^2=0\iff y+5=0\to \boxed{y=-5}\\\\subtitute\ the\ value\ of\ y\ to\ the\ equation\ x=-10-y\\x=-10-(-5)\\x=-10+5\\\boxed{x=-5}\\\\Answer:\boxed{-5\ and\ -5}
7 0
4 years ago
What is 10^{2} /19^{4}
MatroZZZ [7]

Answer:

\frac{100}{130321}

Step-by-step explanation:

10² ÷ 19^{4}

100 ÷ 19^{4}

100 ÷ 130321

\frac{100}{130321}

4 0
3 years ago
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