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sveta [45]
3 years ago
9

Three friends go grocery shopping together, and each buys the same kind of

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

Answer:

C

Step-by-step explanation:

Because if you plug those numbers into the graph, only C and D fit. Now we have to look at the unit price. If LaMar buys 2 lbs and pays 3.00 dollars, we know that the unit price is 3/2=1.5 dollars per pound. You could also check with the other peoples. $7.5/5lbs=1.5 dollars. $4.5/3lbs=$1.5

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Fifteen more than the product of a number and seven
balu736 [363]

Answer:

15+ (B x 7)

Step-by-step explanation:

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3 years ago
The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f (x )equalsStartFraction x
ankoles [38]

Answer:

The rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities are:

a) 0.52

b) 2.63

Step-by-step explanation:

The rate of change of a function at a given point P can be obtained by evaluating the 1st derivative of the function in P. Thus,

f(x)=\frac{x^2}{2(1-x)}

\frac{df(x)}{dx} = \frac{d(\frac{x^2}{2(1-x)})}{dx} \\\frac{df(x)}{dx}  =\frac{x}{1-x}  + \frac{x^2}{2(1-x)^2} \\\frac{df(x)}{dx} = -\frac{x(x-2)}{2(x-1)^2}

Now for we just need to evaluate in each of the given points

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4 0
3 years ago
Stephanie has 60 tickets to the carnival.She used 3/4 of her 60 tickets to play games.Then she used 1/5 of her remaining tickets
Lera25 [3.4K]

Answer:

<h2>She gave her brother 6 tickets</h2>

Step-by-step explanation:

This problem is on fractional numbers.

given that she has 60 tickets

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=(3/4)*60

=180/4

=45

She is left with (60-45)= 15 tickets

2. She used 1/5 of her remaining tickets for rides

    =(1/5)*15

   =15/5

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She is left with (15-3)= 12 tickets

3. She gave half of her tickets to her brother.

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  =12/2

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She gave her brother 6 tickets

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4 years ago
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Answer:

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Step-by-step explanation:

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