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3 years ago

If the interior angle of a polygon is 170 how many sides does it have

Mathematics

1 answer:

Tpy6a [65]3 years ago

6 0

if interior angle is 170, subtract 170 from 180 to find exterior angle:

180-170 = 10 = exterior angle

the sum of exterior angles is 360 so divide by exterior angle to find sides:

360 /10 = 36 sides

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To mix weed killer with water correctly, it is necessary to mix 30 teaspoons of weed killer with 5 gallons of water. Find how ma

nlexa [21]

Answer
6 Gallons

Each gallon of water needs 6 teaspoons because 30/5=6

Now we know that teaspoons/6=amount of gallons

36/6=6 gallons

7 0

2 years ago

If 5x – 4 = 31, what is the value of x?

Lunna [17]

Answer:

x = 5 $\frac{2}{5}$

Step-by-step explanation:

Hi there!

So, to answer this problem, I'll use the reverse method.

31 - 4 = 27,

So how many times, can 5 go into 27?

The closest factor of 5 to 27 is 25.

5 can go in to 27, 5 times.

Continuing on, there is a 2 left over, so the answer to your question is

x = 5 $\frac{2}{5}$

5 · 5 $\frac{2}{5}$ - 4 = 31

Let me know if I am incorrect and I will attempt to find the right answer for you.

<em>waffletowne</em>

7 0

2 years ago

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Anyone help me with this please!!

Vera_Pavlovna [14]

Answer;
35, 70, and 77

4 0

2 years ago

3х2 = 147<br> Solve by undoing

Dmitry_Shevchenko [17]

Answer: +/- 7

Step-by-step explanation:

3x² = 147

To solve for x divide through by three first.

3x² = 147

x² = 49, now we take the square root of both side by trying to apply laws of indices.

√x² = √49

The square root will neutralize the effect of the square because

√a = a¹/² so (x²)¹/², and (x²)¹/² =

x²×¹/² = x, therefore the solution is

x = +/- 7.

3 0

3 years ago

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Lady_Fox [76]

Answer:

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Step-by-step explanation:

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8 0

3 years ago

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