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Taya2010 [7]
3 years ago
7

Original amount: 9 new amount: 6

Mathematics
1 answer:
Rina8888 [55]3 years ago
7 0

Answer:

-3

Step-by-step explanation:

you subtracted 3 from the original amount

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A=1/2h(B+b);A=81,B=8,b=1 what is h
Semenov [28]

Answer:

81=1/2h×9,

81=1/18h

1458h=1

h=1/1458

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3 years ago
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Solving Rational equations. LCD method. Show work. Image attached.
Dmitry [639]

Answer:

b=1

Step-by-step explanation:

The given rational equation is

\frac{2b-5}{b-2} -2=\frac{3}{b+2}

The Least Common Denominator is (b+2)(b-2).

Multiply each term in the equation by the LCD.

(b+2)(b-2)\times \frac{2b-5}{b-2} -(b+2)(b-2)\times2=(b+2)(b-2)\times\frac{3}{b+2}

Simplify;

(b+2)\times \frac{2b-5}{1} -2(b+2)(b-2)=(b-2)\times\frac{3}{1}

(b+2)(2b-5) -2(b+2)(b-2)=3(b-2)

Expand and group similar terms

2b^2-5b+4b-10 -2(b^2-4)=3b-6

2b^2-5b+4b-10 -2b^2+8=3b-6

-b-2=3b-6

3b+b=-2+6

4b=4

b=1

3 0
3 years ago
What is the image of the point (3, 2) after a rotation of 90° counterclockwise about the origin?​
GarryVolchara [31]
(-2,3). When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x).
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3 years ago
Which expressions are equivalent to -6+49 + (-69)?
m_a_m_a [10]

Answer:

I'm pretty sure it's none of the above

Step-by-step explanation:

Sorry if you get it wrong :/

3 0
3 years ago
What id the mean of the set? 10, 15, 14, 8, 18, 11, 12, 12, 10, 10, 17, 16
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The Mean is of the data is 12.75
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