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kozerog [31]
3 years ago
11

What is the slope of the line that includes points (36,-30) and (39,27)

Mathematics
1 answer:
DedPeter [7]3 years ago
7 0

Answer:

The slope of the line is 19

Step-by-step explanation:

slope=(y2-y1)/(x2-x1)=(27-(-30))/(39-36)=57/3=19

Therefore, the slope of the line is 19

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School X and School Y play each other in a competition. School X has six more points than School Y. School X has four times as m
Kipish [7]

Answer:

School X has 8 points and School Y has 2 points

Step-by-step explanation:

From first sentence

X - 6 = Y

From second sentence

X = 4Y

Hence substitute equation 1 into equation 2

4Y - 6 = Y

Y = 2

X = 4 x 2 = 8

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$3.56

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Leilani practiced piano for 3/5 of an hour. Sarah practiced piano for 7/8 of an hour.
ivolga24 [154]

Answer:

The number of hours did Sarah practice more than Leilani is \dfrac{11}{40}  hours  .

Step-by-step explanation:

Given as :

The time for which Leilani practiced piano = \dfrac{3}{5} hours

The time for which Sarah practiced piano = \dfrac{7}{8} hours

Let the number of hours did Sarah practice more than Leilani = T hours

<u>Now, According to question</u>

The number of hours did Sarah practice more than Leilani = \dfrac{7}{8} hours -  \dfrac{3}{5} hours

Or, T =  \dfrac{35-24}{40} hours

Or, T =  \dfrac{11}{40} hours

So,The number of hours did Sarah practice more than Leilani = T =  \dfrac{11}{40}  hours

Hence, The number of hours did Sarah practice more than Leilani is \dfrac{11}{40}  hours  . Answer

3 0
3 years ago
When a number is added to six times its square, the result is twelve. Find the number.
7nadin3 [17]
Let's represent our number as x.
x is being added to 6 * x², and it equals 12
x + 6x^{2}=12\\6x^{2}+x-12=0
Factor:
6x^{2}+x-12=0\\(2x+3)(3x-4)=0
Solve for x:
(2x+3)=0\\2x=-3\\x=\frac{-3}{2}\\\\(3x-4)=0\\3x=4\\x=\frac{4}{3}

Therefore, x = -3/2 and 4/3.
6 0
3 years ago
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Is 3( x + 4 ) equivalent to 3x + 12?
pochemuha
Yes the equations are equivalent
6 0
3 years ago
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