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egoroff_w [7]
3 years ago
15

The sum of three numbers is 66. The second number is 2 times the third. The first number is 10 less than the third. What are the

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
7 0

Answer:

Step-by-step explanation:

Let the three numbers be x, y, z

So from the problem given we can get the equations as :

x + y+z= 66

x=2y

z=1x/3

Now we will make equation 1 have only one variable using equation 2 and 3.

y=1x/2 since x=2y

Now using equations 1, 3 and 5 we will get

x+1x/2+1x/3=66

11x/6=66

x= 66*6/11

x= 36

y=x/2=36/2=18

z=x/3=36/3=12

Therefore:

x = 36

y=18

z=12

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Natalka [10]

Answer:

slopee = 5/3

Step-by-step explanation:

The  slope of a line is defined by the rise (the change in y-value) divided by the run (the change in x-value).  Here, the change in y-value is 6 - (-14) = 6 + 14 = 20.  The change in x-value is 20 - 8 = 12.  Therefore, the slope is 20/12 or (simplified) 5/3.

3 0
3 years ago
PLEASE HELP<br><br><br><br>this is a formula for a sequence, f(x) = 8 - 11x, what is f(8)?​
Elenna [48]

Answer:

-80

Step-by-step explanation:

plug in 8 to the equation

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7 0
3 years ago
Mr. Davis divided his money in the ratio 4:6 between James and Brett. James got the smaller amount of $540. How much did Brett r
sattari [20]

Answer:

$810

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3 0
3 years ago
What is the slope of the line that passes through the points (-2, -3), and (5, 4)?
fomenos

Hi!

<h3>To find the slope, use this formula</h3>

\frac{y2-y1}{x2-x1}

<h3>Put in the values</h3>

\frac{4-(-3)}{5-(-2)}=\frac{7}{7}simplify=1

<h2>The slope is 1 </h2>

Hope this helps! :)

-Peredhel

4 0
3 years ago
What is the slope of the line that passes through the points (-2, 2), and (-4, -2)? - 2 -2
dusya [7]

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (-2, 2) and (-4, -2). Substitute:

m=\dfrac{-2-2}{-4-(-2)}=\dfrac{-4}{-2}=2

<h3>Answer: the slope = 2</h3>
4 0
3 years ago
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