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3 years ago

What is10 1/2- 8 1/2

1 answer:

4 0

10 1/2 - 8 1/2= 2
Just like simple subtraction only using fractions. It will get tough if you don’t understand how to change a denominator if they aren’t similar. I suggest asking someone for help on those. I’m always happy to help so just message me.

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The midpoint of segment AB is (-7, 10) and endpoint A is located at (3, -1). Find the other endpoint B. Show all work.

dusya [7]

Answer:

$B(-17,21)$

Step-by-step explanation:

The midpoint of two points is the average of the x coordinates and the average of the y coordinates.

Given

A(3, -1)

and we let the other end point B be B(x,y)

and midpoint is (-7,10)

So, the average of 3 and x is -7, and

the average of -1 and y is 10

We can solve for x first:

$\frac{3+x}{2}=-7\\3+x=2*-7\\3+x=-14\\x=-14-3\\x=-17$

and now solving for y:

$\frac{-1+y}{2}=10\\-1+y=2*10\\-1+y=20\\y=20+1\\y=21$

So, the other point B is:

$B(-17,21)$

6 0

4 years ago

93.64m to metres and centimetres

Wewaii [24]

Answer: 9,364cm

Step-by-step explanation: 1 meter = 100 centimeters so it’s 93.64(100) = 9,364

5 0

2 years ago

Evaluate 6j+ 23+k/l−3, when j=3, k=7, and l=33. Enter your answer in the box.

LekaFEV [45]

83.212121 or fraction form is 83 7/33

7 0

4 years ago

Solve the system using elimination

saul85 [17]

2x + 3y = 9
x + 5y = 8....multiply by -2
----------------
2x + 3y = 9
-2x - 10y = -16 (result of multiplying by -2)
---------------add
-7y = - 7
y = -7/-7
y = 1

x + 5y = 8
x + 5(1) = 8
x + 5 = 8
x = 8 - 5
x = 3

solution is (3,1)

7 0

3 years ago

Simplify the following expression. (-12x³- 48x²) ÷ -4x

densk [106]

Answer:

3x^4+12x^3

Step-by-step explanation:

6 0

3 years ago