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vagabundo [1.1K]
3 years ago
6

How to find the slope intercept form of the equation using another line in slope intercept form and a point for the line?

Mathematics
1 answer:
Alexeev081 [22]3 years ago
3 0

Answer:

IF the other line is parallel you use the same slope (m) as the line given then find the y intercept (b) by plugging in the (x,y) and m into y = mx + b

Step-by-step explanation:


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Solve the inequality 7(x + 4) &gt; 0.<br><br> x &lt; -4<br> x &gt; -4<br> x &lt; 4<br> x &gt; 4
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7(x+4)>0

Distribute 7. (multiply by x and 4)

7x+28>0

Subtract 28 on both sides.

7x>-28

Divide by 7 into both sides.

x>-4

x>-4 is the answer. 

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40 minutes for 8 inches

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Option C. (-x,y)

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Katie is starting a babysitters sitting business. She spent $26 to make signs to advertise. She charges her initial fee of five
zloy xaker [14]

Answer:

The Inequality representing the number of hours she want to babysit to make a profit is 5+3x>26.

Katie should babysit for more than 7 hours in order to make profit.

Step-by-step explanation:

Given:

Money spent on advertising = $26

Initial fee = $5

Hourly charge = $3

We need to find the number of hours she want to babysit to make a profit.

Solution:

Let the number of hours be 'x'.

Now we can say that;

The sum of Initial fee and Hourly charge  multiplied by number of hours should be greater than Money spent on advertising .

framing in equation form we get;

5+3x>26

Hence The Inequality representing the number of hours she want to babysit to make a profit is 5+3x>26.

On Solving the above Inequality we get;

Now Using Subtraction property of Inequality we will subtract both side by 5 we get;

5+3x-5>26-5\\\\3x>21

Now Using Division Property of Inequality we will divide both side by 3 we get;

\frac{3x}{3}>\frac{21}{3}\\\\x>7

Hence Katie should babysit for more than 7 hours in order to make profit.

Interpretation:

when x=7

Amount earned will be = 5+3x=5+3\times7 =5+21=\$26

Profit earned will be = Amount earned - Money spent on advertising = 26 -26 =0

when x= 8

Amount earned will be = 5+3x=5+3\times8 =5+24=\$29

Profit earned will be = Amount earned - Money spent on advertising = 29 -26 =$3

Hence at 7 hours of babysitting profit will be 0 and at 8 hours of babysitting profit will be $3.

3 0
3 years ago
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