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3 years ago

Which property of equality was used to solve this equation? x − 5 = -14 x − 5 + 5 = -14 + 5 x = -9

Mathematics

1 answer:

Reika [66]3 years ago

7 0

Answer:

Additive property

Step-by-step explanation:

Given

$x - 5 = -14$

Required

The property used

In the 2nd step, 5 was added to both sides, i.e.

$x - 5+5 = -14 + 5$

The above is an illustration of additive property of equality, i.e. Adding or subtracting the same variable or constant to both sides of an equation

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What Is 5 1/2 - 2 5/6? Explain Your Answer

natulia [17]

Answer:

2 2/3

Step-by-step explanation:

Make them into improper fractions first.

11/2 - 17-6

Then multiply 11/2 so that they have common denominators.

33/6 - 17/6

Then solve.

33/6 - 17/6 = 16/6

Then convert back into a mixed number.

2 4/6 or 2 2/3

5 0

3 years ago

3. Reason quantitatively. A figure has vertices P(-3, 1), Q(9, 1), R(3, —7), and S(-9, -7).

BlackZzzverrR [31]

Don’t listen to them

3 0

3 years ago

What’s is the slope of the lin

Lady bird [3.3K]

Answer:

1/3

Step-by-step explanation:

Method 1.

slope = rise/run

Rise is vertical distance.

Run is horizontal distance.

Find two points that are easy to read (on grid intersections):

(2, -1) and (5, 0).

Start at (2, 1). You need to go to (5, 0) by moving only vertically and horizontally. Go up 1 unit. That is a rise of 1. Now go right 3 units. That is a run of 3.

rise = 1

run = 3

slope = rise/run = 1/3

Method 2.

Use the slope formula and two points on the line.

$slope = m = \dfrac{y_2 - y_1}{x_2 - x_1}$