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harina [27]
3 years ago
6

two rival dry cleaners both advertise their prices. Store a prices are modeled by the expression 8x-5 where X is the number of

items brought in. Store bees prices are modeled by the expression 2(4x+6) , Where X is the number of items brought in. when do the two stores charge the same rate
Mathematics
1 answer:
avanturin [10]3 years ago
8 0

Answer:

The stores at no point in time will charge same rate ( their rates will always be different)

Step-by-step explanation:

To get the value of x that they charge same rate, we simply equate the value of rate in both;

thus;

8x-5 = 2(4x + 6)

8x-5 = 8x + 12

From what we have here, we can conclude that the equation has no solution

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Which ones correct?
natima [27]

Answer:

D

Step-by-step explanation:

y = 4 is a horizontal line which would be parallel to the x axis

6 0
3 years ago
Find the slope of the line that passes through the points<br> (-5,-6) and (5,10)
muminat

Answer:

8/5

Step-by-step explanation:

To find the slope given two points

m = (y2-y1)/(x2-x1)

    = (10- -6)/(5 - -5)

    = (10+6)(5+5)

   = 16/10

   = 8/5

8 0
3 years ago
Read 2 more answers
The diameters of Douglas firs grown at a Christmas Tree Farm are normally distributed with a mean of 4 inches and a standard dev
leva [86]

Answer:

The proportion of trees greater than 5 inches is expected to be 0.25 of the total amount of trees.

Step-by-step explanation:

In this problem we have a normal ditribution with mean of 4.0 in and standard deviation of 1.5 in.

The proportion of the trees that are expected to have diameters greater than 5 inches is equal to the probability of having a tree greater than 5 inches.

We can calculate the z value for x=5 in and then look up in a standard normal distribution table the probability of z.

z=\frac{x-\mu}{\sigma}=\frac{5-4}{1.5}=0.67

P(x>5)=P(z>0.67)=0.25  

The proportion of trees greater than 5 inches is expected to be 0.25 of the total amount of trees.

8 0
3 years ago
Angie and Kenny play online video games. Angie buys 1 software package and 3 months of game play. Kenny buys 1 software package
Olin [163]

<u>Angie buys</u>

1 Software package + 3 months of game play.

Each software package costs = $20.

Let us assume cost of one month of game play = $x.

Therefore, total cost to Angie for 1 Software package + 3 months of game play = 20*1 + 3x = 20 +3x.

<u> Kenny buys </u>

1 software package + 2 months of game play.

Therefore, total cost to Kenny for 1 software package + 2 months of game play = 20*1 + 2*x = 20+2x.

Their total cost = $115.

Adding their costs and set it equal to 115, we get

<h3>20 +3x +  20+2x  = 115.</h3>

Now, we need to solve it for x.

40 + 5x = 115.

5x = 115 - 40.

5x = 75.

Dividing both sides by 5, we get

x= 15.

<h3>Therefore, $15 is the total cost of one month of game play.</h3>
6 0
3 years ago
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umka21 [38]
0 or if maybe another 0 for two ZER0s
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4 years ago
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