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Black_prince [1.1K]

3 years ago

12

How to do long division with remainders 780 ÷8?

1 answer:

kvv77 [185]3 years ago

6 0

Well, breaking it down, you're going to do 780/8, in two/three steps.

First, you'll do 78/8, which is 9. 78- (8*9) is now
78-72 = 7.

Then, we're going to take the 0 and put that at the end of 7, making it 70
so 70/8 is 8, with 6 left over.

Now we smoosh these numbers together to get 96 remainder 6

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5x+y=-10 4x-7y=-8 Substition Method (Show it step by step please!)

Fynjy0 [20]

$\left\{\begin{array}{ccc}5x+y=-10&|\text{subtract 5x from both sides}\\4x-7y=-8\end{array}\right\\\left\{\begin{array}{ccc}y=-5x-10&|\text{substitute to the second equation}\\4x-7y=-8\end{array}\right\\\\4x-7(-5x-10)=-8\qquad\text{use distributive property}\\\\4x+(-7)(-5x)+(-7)(-10)=-8\\\\4x+35x+70=-8\qquad\text{subtract 70 from both sides}\\\\39x=-78\qquad\text{divide both sides by 39}\\\\\boxed{x=-2}\\\\\text{Put the value of x to the first equation}\\\\y=-5(-2)-10\\\\y=10-10\\\\\boxed{y=0}$

$Answer:\ \boxed{x=-2\ and\ y=0}$

3 0

3 years ago

Read 2 more answers

AH the second question

Degger [83]

Answer:

ii. 55 degrees.

Step-by-step explanation:

(ii)

Consider the quadrilateral ABCD.

Angle n = 180 - 96 = 84 degrees ( opposite angles of a cyclic quadrilateral are supplementary).

Consider triangle ABC: the 3 angles are supplementary, so

m < j = 180 - 84 - 41

= 55 degrees.

4 0

3 years ago

Can you answer this please

Sauron [17]

Answer:

It's 2.

Step-by-step explanation:

When the denominator is 99 that means it is a repeating decimal

6 0

4 years ago

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Systems of linear equations iready quiz

saw5 [17]

Answer:

<h2>One solution.</h2>

Step-by-step explanation:

The given question is

<em>Does the following system have One Solution, No Solution, or Infinite Solutions. </em>

<em /> $y = 4x + 8\\y = -5x + 3$ <em />

<em />

<em />

To solve this system, we just need to multiply the first equation by -1, and then sum those equations.

$-y = -4x - 8\\y = -5x + 3$

$0=-9x-5\\5=-9x\\x=-\frac{5}{9}$

Then, we use this value to find the other one

$y=4x+8\\y=4(-\frac{5}{9} )+8\\y=-\frac{20}{9}+8\\y =\frac{-20+72}{9} \\y=\frac{52}{9}$

As you can observe, the system of equations have a unique solution.

Therefore, the answer is one solution.

7 0

3 years ago

Round 18.2 to 1 significant figure

notsponge [240]

The answer would be : 18.0

Hope this helps !

Photon

6 0

3 years ago

Read 2 more answers