What is the value of y in the equation y + 9 = 13? 1.45 4 22 117 2. What is the value of x in the equation 8 + x = 3? –5 5 11 24
2 answers:
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<h2>Explanation:</h2>Remember you have to provide complete questions in order to get exact answers. Here I'll provide a general explanation, so:
<h3>First.</h3>The slope is:
The y-intercept is:
By using graphing tool, we get the first graph shown below.
<h3>Second.</h3>The slope is:
The y-intercept is:
By using graphing tool, we get the second graph shown below.
<h3>Third.</h3>The slope is:
The y-intercept is:
By using graphing tool, we get the third graph shown below.
<h3>Fourth.</h3>The slope is:
The y-intercept is:
By using graphing tool, we get the fourth graph shown below.
<h2>Learn more:</h2>Linear inequalities: brainly.com/question/12984296
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<u>Answer:</u>
Both Sally ans Manny can detail a car in 20.6 min.
<u>Solution: </u>
Let us assume that together they will take total x minutes to detail the car.
Sally detail the car in 50 min.
So in 1 min sally can detail \left(\frac{1}{50}\right) of the car.
Hence in x min sally can detail \left(\frac{x}{50}\right) of the car.
Manny can detail a car in 35 min.
So in 1 min many can detail \left(\frac{1}{35}\right) of the car.
Hence in x min Manny can detail \left(\frac{x}{35}\right) of the car.
So we can say,
\left(\frac{x}{50}\right)+\left(\frac{x}{35}\right)=1
x\left(\frac{1}{50}+\frac{1}{35}\right)=1
x\left(\frac{7+10}{350}\right)=1
\left(\frac{17 x}{350}\right)=1
x=\left(\frac{350}{17}\right)=20.5
8 20.6
So, both of them can detail a car in 20.6 min.