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NeTakaya
3 years ago
15

What is the density ?

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
7 0
Density is the degree of compactness of a substance. It is the degree of consistency measured by the quantity of mass per unit  volume. It is the relationship between the mass of the substance and the amount of space it takes up. I hope it helps. 
torisob [31]3 years ago
6 0
The mass of substance per unit of volume. 
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Select the equation written in standard form.
Elden [556K]

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c

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standard form is y=mx+b

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What is the slope of the line?help pls
mamaluj [8]

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1

Step-by-step explanation:

6 0
3 years ago
Given the table, write and equation for the function, and describe what it does.<br><br> ASAP!!!
k0ka [10]

Answer:

f(x) = 3x + 1

Step-by-step explanation:

f(x) = 3x + 1

f(1) = 3+1 = 4

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f(4) = 3*4 + 1 = 13

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3 0
3 years ago
Jackie earns $172 per week at her part time job. She is saving this money to buy a used car that cost $2000. At this rate, how m
vodomira [7]

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12 weeks

Step-by-step explanation:

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3 0
3 years ago
At a restaurant, three salads, two sandwiches, and one drink cost $17.75. One salad, one sandwich, and three drinks cost $10.75.
Leno4ka [110]

Answer:

A salad costs $2.50

A sandwich costs $4.50

A drink costs $1.25

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Let x represent the salad, y represent the sandwich, and z represent the drink.

Since three salads, two sandwiches, and one drink cost $17.75:

3x + 2y + z = 17.75  (1)

Since one salad, one sandwich, and three drinks cost $10.75:

x + y + 3z = 10.75  (2)

Since a salad costs twice as much as a drink:

x = 2z  (3)

Multiply the equation 2 by -2 then, sum the equation 1 and equation 2:

-2x - 2y - 6z = -21.50

3x + 2y + z = 17.75

→ x - 5z = -3.75

Replace the x with 2z using equation 3:

2z - 5z = -3.75

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z = 1.25

x = 2z → x = 2.50

x + y + 3z = 10.75 → 2.50 + y + 3.75 = 10.75 → y + 6.25 = 10.75 → y = 4.50

5 0
3 years ago
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