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QveST [7]
3 years ago
15

the relationship between money earned and hours worked is linear. joe computes the slope between (4, 30) and (12, 90), then comp

utes the slope between (4, 30) and (10, 75). how do the two slopes compare?
Mathematics
2 answers:
julia-pushkina [17]3 years ago
6 0
Slope = rise/run =[y2-y1]/[x2-x1]

1) slope = [90 - 30] / [12 - 4] = 60 / 8 = 15/2

2) slope = [75 - 30] / [10 - 4] = 45 / 6 = 15 / 2

The slopps are equal.
mylen [45]3 years ago
3 0

Answer: The slopes are equal.

The points are representing the same line.

Step-by-step explanation:

We know that the slope between points (a,b) and (c,d) is given by :-

m=\dfrac{d-b}{c-a}

The slope between the points (4,30)  and (12,90) will be

m_1=\dfrac{90-30}{12-4}=\dfrac{60}{8}=\dfrac{15}{2}

The slope between the points (4,30) and (10,75) will be

m_2=\dfrac{75-30}{10-4}=\dfrac{45}{6}=\dfrac{15}{2}

\Rightarrow\ m_1=m_2

We know that if the slopes are equal then the lines are parallel.

But they have one point common (4,30) so it cannot be parallel, they ust be same line .

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URGENT HELP YALL WITH THIS. I WILL MARK YOU BRAINLIEST
Reptile [31]

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(9x + 17) +2 \times  ( 5x + 15 ) + (6x - 12) = 360 \\

9x + 17 + 10x + 30 + 6x - 12 = 360 \\

9x + 10x + 6x + 17 + 30 - 12 = 360 \\

Collect like terms

25x + 35 = 360

Subtract sides 35

25x + 35 - 35 = 360 - 35

25x = 325

Divide sides by 25

\frac{25x}{25}  =  \frac{325}{25}  \\

x = 13

Thus ;

RQ  \:  \: arc =2 \times (5x + 15)

RQ  \:  \: arc = 10x + 30

RQ  \:  \: arc = 10(13) + 30

RQ  \:  \: arc = 130 + 30

RQ \:  \:  arc = 160°

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7 0
2 years ago
Translate the sentence into an equation. Six more than the quotient of a number 5 and 9 equals . Use the variable y for the unkn
sashaice [31]
the answer is 6+5y=9
7 0
3 years ago
The problem of matching aircraft to passenger demand on each flight leg is called the flight assignment problem in the airline i
Darina [25.2K]

Answer:

Step-by-step explanation:

Given that the demand for the 6 p.m. flight from Toledo Express Airport to Chicago's O'Hare Airport on Cheapfare Airlines is normally distributed with a mean of 132 passengers and a standard deviation of 42

Let X be the no of passengers who report

X is N(132, 42)

Or Z is \frac{x-132}{42}

a) Suppose a Boeing 757 with a capacity of 183 passengers is assigned to this flight.

the probability that the demand will exceed the capacity of this airplane

=P(X>183) = P(Z>1.21) =

=0.5-0.3869\\=0.1131

b)  the probability that the demand for this flight will be at least 80 passengers but no more than 200 passengers

=P(80\leq x\leq 200)\\= P(-1.23\leq z\leq 1.62)\\

=0.4474+0.3907

=0.8381

c) the probability that the demand for this flight will be less than 100 passengers

=P(x

d) If Cheapfare Airlines wants to limit the probability that this flight is overbooked to 3%, how much capacity should the airplane that is used for this flight have? passengers

=P(Z>c)=0.03\\c=1.88\\X=132+1.88(42)\\=210.96

e) 79th percentile of this distribution

=132+0.81(42)\\= 166.02

7 0
3 years ago
Write the equation of the line, in slope-intercept form, that passes through the point (-8,-1) and that is parallel to x-3=0
nataly862011 [7]
Y=-5X which is the equation you use to figure out the answer
5 0
3 years ago
Really need help , it will help my grade!!!
klio [65]

Answer:

ax + b= ax + b

Step-by-step explanation:

Infinite many solutions when both sides are equal

so

ax + b= ax + b

5 0
3 years ago
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