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Zanzabum
3 years ago
13

I need help with my ADD and subtraction fraction ​

Mathematics
1 answer:
kotegsom [21]3 years ago
4 0

Answer:

What do you need help with?

Step-by-step explanation:

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Four more than three times a number is thirteen. What is this number?
Ostrovityanka [42]

Answer:

3

Step-by-step explanation:

13-4=9

9/3=3

4 0
2 years ago
Read 2 more answers
Help Please . its due in 5 hours and i cant find answers
dolphi86 [110]

Answer:

39 pi cubic inches

Step-by-step explanation:

The volume of a cone is (1/3)(area of the base)(height).

V=\frac{1}{3}Bh

Find the area of the circular base.  The circumference of a circle is C=2\pi r, so

2\pi r = 6\pi\\\\r=3

Now that you know the radius of the circular base, you can find its area:

A=\pi r^2 = \pi(3^2)=9\pi

The height of the cone is 13.  Time to use the volume formula.

V=\frac{1}{3}Bh\\\\V=\frac{1}{3}(9\pi)(13)\\\\V=39\pi

6 0
3 years ago
How can you tell that a fraction is a unit fraction
a_sh-v [17]
You can tell that a fraction is a unit fraction when it is over a unit of one. This is also known as unit rate.
6 0
3 years ago
Read 2 more answers
Es The measure of an interior angle of a regular polygon is 120°. What is the measurb of each exterior angle? The polygon has
Troyanec [42]

The measure of each exterior angle is 60° and the polygon has 6 sides ⇒ 4th answer

Step-by-step explanation:

In a regular n-side polygon:

  • All sides are equal in lengths
  • All angles are equal in measure
  • The measure of each interior angle = \frac{(n-2)*180}{n}
  • The measure of each exterior angle = \frac{360}{n}
  • The sum of interior angle and exterior angle at a vertex is 180°

∵ The measure of an interior angle of a regular polygon is 120°

∵ The sum of interior angle and exterior angle at a vertex = 180°

∴ The measure of each exterior angle = 180 - 120

∴ The measure of each exterior angle = 60°

∵ The measure of each exterior angle = \frac{360}{n}

- Substitute the measure of the exterior angle by 60

∴ 60=\frac{360}{n}

- By using cross multiplication

∴ 60 n = 360

- Divide both sides by 60

∴ n = 6

∴ The polygon has 6 sides

The measure of each exterior angle is 60° and the polygon has 6 sides

Learn more:

You can learn more about polygons in brainly.com/question/6281564

#LearnwithBrainly

5 0
3 years ago
Hey! i need help plz
tia_tia [17]
X=6 and y=-9. Not sure if y is correct since I kind of rushed but I hope this helps!
6 0
3 years ago
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