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Svetlanka [38]
3 years ago
6

HELP! please :) if anybody can help me i'd be very happy!

Mathematics
1 answer:
insens350 [35]3 years ago
7 0

Answer:

x = 18

Step-by-step explanation:

6x + 4x = 180

combine like terms

10x = 180

divide both sides of the equation by 10

10x/10 = 180/10

x = 180/10

x = 18

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could 7.2 inches and 28 inches be the diameter and circumference of the same circle? Explain why or why not.
Minchanka [31]

Answer: The diameter 7.2 inches and circumference 28 inches of the same circle could not possible.


Step-by-step explanation: Given diameter of the circle = 7.2 inches.

Circumference of the circle = 28 inches.

Formula for Circumference of the circle = πd, where d is the diameter of the circle.

Plugging value of d in formula, we get

Circumference of the circle = π(7.2).

Plugging π= 3.14, we get

Circumference = 3.14 (7.2) = 22.61.

22.61 is smaller than given circumference 28 inches.

<h3>Therefore, the diameter 7.2 inches and circumference 28 inches of the same circle could not possible.</h3>

8 0
4 years ago
Please help! <br> find the value of x in the isosceles triangle shown below.<br> 4 <br> 6
nata0808 [166]

Answer:

B

Step-by-step explanation:

Pythagorean theorem:

6^2 + (4/2)^2 = x^2

36 + 4 = x^2

40 = x^2

x = \sqrt{40}= 2\sqrt{10}

Answer is B

6 0
3 years ago
The width of a rectangle is 9 inches more than 5 times the length. If x represents the length, write an algebraic expression in
larisa86 [58]

Answer:

The expression that represents the perimeter of the rectangle is "12*x + 18", where "x" is the length of the rectangle.

Step-by-step explanation:

In order to solve this question we were given an expression that relates both dimensions of the rectangle. This expression in a mathematical form where "x" is the length and "y" is the width is shown bellow:

y = 9 + 5*x

The perimeter of a rectangle is given by:

perimeter = 2*length + 2*width

perimeter = 2*x + 2*(9+5*x)

perimeter = 2*x + 18 + 10*x

perimeter = 12*x + 18

The expression that represents the perimeter of the rectangle is "12*x + 18", where "x" is the length of the rectangle.

6 0
4 years ago
Elvin reads 4/7 of his book he has 126 pages left to read how many has he read already
RSB [31]

126/3 = 42

42 x 4 = 168

126 + 168 = how many pages there are in the book

168 pages is how much he has already read!

8 0
4 years ago
Write a number in standard form that has the same value as 500+30+4
drek231 [11]
                                     if you add 500+30+4, it will equal 534 . standard form means an easier way of writing down very large or very small numbers. an esier way to write 500+30+4 would be 534. also can be called standard form which has the same value.
in standard form:
500+30+4 is
<span>534
</span>
5 0
4 years ago
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