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Sladkaya [172]
3 years ago
13

7(13 - 2x) - 9(x + 10)

Mathematics
2 answers:
jeka57 [31]3 years ago
5 0

Answer:

-23x+1

Step-by-step explanation:

91-14x - (9x+90)

91-14x-9x-90

-23x+1

LekaFEV [45]3 years ago
5 0

Answer:

1-23x

Step-by-step explanation:

7(13-2x)-9(x+10)

7(13)+7(-2x)-9(x)-9(10)

91-14x-9x-90

Combine like terms

91-90 = 1

-14x-9x = -23x

1-23x

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Whats 3.2r + 14.7=6.74
Nata [24]

<u><em>r=-199/80 is the right answer.</em></u> First, you had to multiply by 100 from both sides of the equation. And it gave us, 3.2r*100+14.7*100=6.74*100. Next, you had to refine, and it gave us, 320r+1470=674. Then, subtract by 1470 from both sides of equation. And it gave us, 320r+1470-1470=674-1470. Simplify, and it gave us, 320r=-796. You can also divide by 320 from both sides of equation. And it gave us, \frac{320r}{320}=\frac{-796}{320}. And finally, simplify, and it gave us the answer is <em><u>r=-199/80 is the right answer.</u></em> Hope this helps! And thank you for posting your question at here on brainly. And have a great day! -Charlie

6 0
3 years ago
Read 2 more answers
A dartboard consists of a circle inscribed in a square. The area of the circle is 16π square centimeters. The area of the square
lapo4ka [179]

The solution would be like this for this specific problem:

 

Area of Circle = 16(π)

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Area of Square = 64

= 64 – 50.24

= 13.76

 

Area of Square but not on the circular board = 13.76 / 64

= 0.215

Percentage value = 0.215 * 100%

= 21.5%

So, <span>to the nearest percent, the probability that the dart lands inside the square but not on the circular dartboard is 21.5%.</span>

4 0
3 years ago
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Someone Plz help ASAP!!!
Butoxors [25]

Answer:

c=3/16

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Step-by-step explanation:

6 0
4 years ago
PLEASE HELP ASAPPP!!!!!!The elevation of city A is 96 feet below sea level; the elevation of city C is 24 feet below sea level.
goblinko [34]
So we know that:
City A is -96ft in elevation
City C is -24ft in elevation
City D is (1/4C)ft in elevation.
So, knowing this we can make an equation: 1/4•-24/1=-24/4=-6
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4 0
3 years ago
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The 15th term of an arithmetic series is
RSB [31]

Answer:

-1557

Step-by-step explanation:

a+14d=143

a+12d=183

--------------------

2d= -40

d= -20

a=183+240=423

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I hope that help =)

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