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3 years ago

I need help with this problem

Mathematics

2 answers:

Snezhnost [94]3 years ago

6 0

The answer is b - 242

Bumek [7]3 years ago

5 0

The awnser is B I think

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June has 30 days. A family of 3 used 3,960 gallons of water during the month of June. How many gallons of water did each person

lys-0071 [83]

Answer:

44 gallons

Step-by-step explanation:

3960/3=1320

Each person used 1320 in one month

1320/30=44

Amount of person used / 30 days = gallons used each day

6 0

3 years ago

8-35. Use your knowledge of polygons to answer the questions below, if possible.

Nataliya [291]

Answer:

(a)I. 13 Sides II. 7 Sides

(b) 4 Sides, Square

(c)x=52 degrees

(d)x=107 degrees

(e)1620 degrees

Step-by-step explanation:

(a)The Sum of the Interior angle of polygon with n sides is derived using the formula: (n-2)180.

I. If the Interior angle is $1980^0$

Then:

$(n-2)180^0=1980^0\\$Divide both sides by 180^0 $ to isolate n$\\n-2=11\\$Add 2 to both sides of the equation\\n-2+2=11+2\\n=13$

The polygon has 13 sides.

II. If the Interior angle is $900^0$

Then:

$(n-2)180^0=900^0\\$Divide both sides by 180^0 $ to isolate n$\\n-2=5\\$Add 2 to both sides of the equation\\n-2+2=5+2\\n=7$

The polygon has 7 sides.

(b)The sum of the exterior angle of a polygon is 360 degrees,

Each exterior angle of a n-sided regular polygon is: $\frac{360^0}{n}$

If the exterior angle of a regular polygon is 90°

Then:

$90\°=\frac{360^0}{n}\\ 90n=360\\n=4$

The regular polygon has 4 sides and it is called a Square.

(c)The Sum of the Interior angle of polygon with n sides is derived using the formula: (n-2)180.

Each Interior angle of a regular n-sided polygon is: $\frac{(n-2)180^0}{n}$

For a pentagon, n=5

Then:

$\frac{(5-2)180^0}{5}=2x+4\\108=2x+4\\108-4=2x\\104=2x\\x=52^0$

(d)The sum of the exterior angle of a polygon is 360 degrees.

If four of the exterior angles of a pentagon are 57, 74, 56, and 66.

Let the fifth angle=x

Then:

$57+74+56+66+x=360^0\\253+x=360\\x=107^0$

(e)The Sum of the Interior angle of polygon with n sides is derived using the formula: (n-2)180.

In an 11-gon., n=11

Therefore, the sum of the interior angle=(11-2)180= $1620^0$

The sum of the interior angle does not change either in a regular or irregular polygon.

3 0

3 years ago

ou push a large crate with a force of 100 N to the right . What force could your friend apply in order to cause a balanced force

mina [271]

Answer:

100 N to the left

Step-by-step explanation:

They have to be equal and opposite to balance, so they will need a force of 100 N to the left

7 0

3 years ago

What is the percentage of 15 out of 75

Archy [21]

$\frac{15}{75}= \frac{3}{15}= \frac{1}{5}= \frac{20}{100}$

The answer is 20%

4 0

3 years ago

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5. A chef prepared 48,462 plates of shrimp. There were 96 shrimp on each plate. How many

marta [7]

Answer:

504 I think

Step-by-step explanation:

48,462 divided by 96

KEYWORD: Each, each always means division

4 0

3 years ago

Read 2 more answers