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Sonbull [250]
3 years ago
14

If || m, find the value of x. (8r + 20) (11 x - 31)

Mathematics
1 answer:
kakasveta [241]3 years ago
3 0

Answer:

31/11

or

2 9/11

<h2><u><em>Could I please have BRAINLIEST?</em></u></h2>

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Find the value of t needed to make the equation shown true. <br><br> 25t = 12.5
-Dominant- [34]

Answer:

1/2

Step-by-step explanation:

Hi Avahosel2020!

To find the value of t we need to simplify the equation:

25t = 12.5

To just get t, we must divide 25 on both sides:

\frac{25t}{25} = \frac{12.5}{25}

<u>We can move the decimal one spot over and add a 0 to the denominator:</u>

\frac{25t}{25} = \frac{125}{250}

t = \frac{125}{250}

Simplifying!

\frac{125}{250} = \frac{1}{2}.

Thus, t has the value of $\boxed{\frac{1}{2} }$.

7 0
3 years ago
If f(x)=x^3−x, what is the average rate of change of f(x) over the interval [1, 5]? a)29.5 b)30 c)43 d)120
avanturin [10]
\bf slope = m = \cfrac{rise}{run} \implies &#10;\cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby &#10;\begin{array}{llll}&#10;average~rate\\&#10;of~change&#10;\end{array}\\\\&#10;-------------------------------\\\\&#10;f(x)= x^3-x  \qquad &#10;\begin{cases}&#10;x_1=1\\&#10;x_2=5&#10;\end{cases}\implies \cfrac{f(5)-f(1)}{5-1}&#10;\\\\\\&#10;\cfrac{[5^3-5]~-~[1^3-1]}{4}\implies \cfrac{125-5~~-~~0}{4}\implies \cfrac{120}{4}\implies 30
7 0
3 years ago
Which ordered pair is the solution to the system of equations?
Tcecarenko [31]
The best way to answer this item is to use the Substitution method. Substitute the value of y from the first equation to the y of the second equation such that the second equation becomes,

     -4x + 3(x - 4) = -3

Simplifying the equation,
    -x = 9

Dividing both sides by -1 gives an answer of,
   <em>x = -9</em>

Then, substitute the value of x in the first equation.
    y = -9 - 4
   <em> y = -13</em>

The answer to this item is letter B. 


6 0
3 years ago
Read 2 more answers
How many quarter hours are in 5 hours?
nikklg [1K]
There is a few ways to get the result.
Lets try this.
First calculate how many minutes are in the 5 hours.
60min*5=300min - in 5 hours
Now, knowing that quarter is 15min we can divide 300 by 15 to get the result, so
300:15=20 - its the result.
6 0
3 years ago
Read 2 more answers
46 Two light houses ash their lights every 30 seconds and 40 seconds respectively. Given that they last ashed together at 10:40
IRISSAK [1]
30,60,90,120
40,80,120

they will both " ash " in 120 seconds (thats 2 minutes)...so they will both ash at 
10:42 a.m.
8 0
3 years ago
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