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otez555 [7]
3 years ago
6

Write an equation for Greg ordered some books online for $6 each. He paid a total of $3 for shipping. The total cost of the purc

hase was $75.00. How many books did he buy?
Mathematics
1 answer:
telo118 [61]3 years ago
6 0

Answer: he bought 12 books.

Step-by-step explanation:

Let x represent the number of books that Greg bought.

Greg ordered some books online for $6 each. This means that x books would cost $6x

He paid a total of $3 for shipping. The total cost of the purchase was $75.00. This means that

6x + 3 = 75

Subtracting 3 from the left hand side and the right hand side of the equation, it becomes

6x + 3 - 3 = 75 - 3

6x = 72

Dividing the left hand side and the right hand side of the equation by 6, it becomes

6x/6 = 72/6

x = 12

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STALIN [3.7K]
We know that a triangle adds up to 180 degrees.

Here, 130 is a vertical angle so on the opposite side the triangle makes, it is also 130. Then we could add 130 to 25

130 + 25 = 155

Now let’s subtract this from 180.

180 - 155 = 25.

X is a supplementary angle to 25 so subtract 25 from 180.

180 - 25 = 155

X = 155.
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3 years ago
WILL GIVE BRAINLIEST
barxatty [35]
B is the only number that is divisible by 3
5 0
3 years ago
Select all the correct graphs.<br> Which graphs are the graphs of even functions?
Nina [5.8K]

Answer:because i know

Step-by-step explanation:

the first 2

6 0
3 years ago
Which classification describes AMNO with vertices M(2, -3), N(3, 1), and<br> 0(-3, 1)?
Sonja [21]

Answer:

Option D

Step-by-step explanation:

32). Given vertices of the triangle are M(2, -3), N(3, 1) and O(-3. 1).

Distance between two points (x_1,y_1) and (x_2,y_2) is given by the expression,

Distance = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Distance between M(2, -3) and N(3, 1) will be,

MN = \sqrt{(3-2)^2+(1+3)^2}

      = \sqrt{1+16}

      = \sqrt{17}

Distance between M(2, -3) and O(-3, 1),

MO = \sqrt{(2+3)^2+(-3-1)^2}

      = \sqrt{25+16}

      = \sqrt{41}

Distance between N(3, 1) and O(-3, 1),

NO = \sqrt{(3+3)^2+(1-1)^2}

      = 6

Condition for right triangle,

c² = a² + b² [Here c is the longest side of the triangle]

By this property,

MO² = MN² + NO²

(\sqrt{41})^2=(\sqrt{17})^2+6^2

41 = 17 + 36

41 = 51

False.

Therefore, given triangle is not a right triangle.

Since, length of all sides are not equal, given triangle will be a scalene triangle.

Option D is the correct option.

5 0
3 years ago
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dezoksy [38]

Answer:

60π

Step-by-step explanation:

2π(3 × 7 ) + 2π (3)^2

Distribute: 2x3x7 and 2x3^2

42π + 18π

That gives 60π.

7 0
3 years ago
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