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BigorU [14]
3 years ago
15

Show all your work plz help now

Mathematics
1 answer:
Studentka2010 [4]3 years ago
5 0
1) $3.2
2) $.96
3) $2.5
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What math symbol is this? <br> Σ
omeli [17]

Answer:

summation

Step-by-step explanation:

This symbol is the summation symbol

It means to sum what comes after it

3 0
3 years ago
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Ricky buys a remote car. He applies a markup of 10%. Write two expressions that represent the price of the car
Softa [21]

Answer:

we have to learn this  in middle school

Step-by-step explanation:

3 0
3 years ago
A new car is sold with or without antilock brakes, with or without a CD player, with or without electric seats, and with or with
True [87]

Answer:

8 different choices

Step-by-step explanation:

With or without antibrake=2 ways

With or without player=2ways

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3 0
3 years ago
AB = 2x-5 BC = 6x AC = 27
OlgaM077 [116]

Answer:

correct answer is x = 2.75

Step-by-step explanation:

Given;

AB = 2x-5

BC = 6x

AC = 27

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=> AC = AB + BC

=> 27 = 2x-5 + 6x

=> 27 = 8x-5

=> 27-5 = 8x

=> 22 = 8x

=> 22/8 = x

=> 11/4 = x

or

2.75 = x

3 0
2 years ago
Let x1 = 12, y1 = 15, and y2 = 3. Let y vary inversely with x. Find x2.
Ostrovityanka [42]
We have that an inverse variation in a function is given by:
 y = k / x&#10;
 We must find the value of the constant k.
 To do this, we substitute the values of x1 = 12, y1 = 15.
 We have then:
 15 = k / 12&#10;
 Clearing k we have:
 k = (15) * (12)&#10;&#10;k = 180
 Substituting the value of k we have that the inverse variation is:
 y = 180 / x&#10;
 For y2 = 3 we have:
 3 = 180 / x2&#10;
 Clearing x2 we have:
 x2 = 180/3
 x2 = 60
 Answer:
 
x2 = 60
3 0
3 years ago
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