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Inga [223]
3 years ago
12

What is the expanded form of the expression -1/7 (y-x)

Mathematics
1 answer:
rodikova [14]3 years ago
3 0

Answer:

-1/7 y + 1/7 x

Step-by-step explanation:

Can also be written as

1/7 x - 1/7 y

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Two types of sandwiches were made for a tea party. 55% of the sandwiches were cheese sandwiches and the rest were chicken sandwi
Helen [10]

"To solve this problem, the formula can be used

I = P / T

Where I is the fraction of the sample

P is the amount of the sample

T is the total amount of sample

Since P = 252 chicken sandwiches and I = 0.55

And solve for T

T = 252 / 0.52

T = 458 sandwiches in total"

hope this helps


7 0
3 years ago
If the sum of the measures of the interior angles of a polygon is 1920°, how many sides does it have? math
Inessa05 [86]

Answer: There is no polygon with the sum of the measures of the interior angles of a polygon is 1920°.

Step-by-step explanation:

The sum of the measures of interior angles of a polygon with n sides is given by:-

(n-2)\times180^{\circ}

Given: The sum of the measures of the interior angles of a polygon is 1920°.

i.e. (n-2)\times180^{\circ}=1920^{\circ}

n-2=\dfrac{1920}{180}\\\\ n= \dfrac{1920}{180}+2\\\\ n=\dfrac{2280}{180}=12.67

But number of sides cannot be in decimal.

Hence, there is no polygon with the sum of the measures of the interior angles of a polygon is 1920°.

7 0
3 years ago
Painter A charges $70 to start a job and $80 per hour he/she is there. Painter B charges $100 per hour. Write an inequality that
Debora [2.8K]

Let the number of hours be x.

70 + 80x < 100x

20x > 70

x > 3.5

8 0
3 years ago
Please help I will give you brainliest!!!!
VikaD [51]

Answer:

63.25sqft

Step-by-step explanation:

semi circle:

a=\pir^2

a=\pi(5)^2 (radius is 5 bc diameter is 10 so you divide it by 2)

a=25\pi

a=78.5/2=39.25 (divide by 2 bc its a semi circle)

triangle:

a=1/2bh

a=1/2(6x8)

a=1/2(48)

a=24

area:

39.25+24=63.25

8 0
3 years ago
What is 8 2/3 - 1 3/10
just olya [345]
7 11/30

Hope this helped!
5 0
3 years ago
Read 2 more answers
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