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3 years ago

If that answer is incorrect or correct

Mathematics

2 answers:

velikii [3]3 years ago

7 0

Sasha's solution is incorrect. She subtracted 8 when she should have divided by 8.

Step 1: 8x = 56

Step 2: x = 56/8

Step 3: x =7

This equation only has 1 solution.

egoroff_w [7]3 years ago

4 0

Answer:

it is incorrect because Sasha is supposed to divide by 8 so the answer would be x=7

Step-by-step explanation:

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svp [43]

Answer:

$Xs=30cm$ and $As=900 cm^{2}$

Step-by-step explanation:

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(x+120)x=4500, $x^{2} +120x-4500=0$ Applying cuadratic equation formula: $\frac{120+-\sqrt{120^{2} -4.1.-4500} }{2} =-\frac{120+-\sqrt{14400+18000} }{2}= x1=30 and x2=-150, finally Xs=30cm, and As=900cm^{2}$

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3 years ago

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60

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3 years ago

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The length of a rectangle is 20 meters and the width is 4 meters. What is the perimeter of the rectangle? Do not include units i

alina1380 [7]

Answer:

$\boxed {\boxed {\sf 48 \ meters }}$

Step-by-step explanation:

The perimeter is the sum of the side lengths.

A rectangle has 4 sides: 2 lengths and 2 widths, so the perimeter formula is

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Add.

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The perimeter of the rectangle is <u>48 meters. </u>

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3 years ago

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3 years ago

Graph the following inequality 5x-2y >10

Genrish500 [490]

The required graph has been attached which represents the given inequality 5x-2y >10.

<h3>What is inequality?</h3>

Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.

We have been the given inequality 5x-2y >10

Rearrange the equation such that "y" is on the left and all other variables are on the right.

5x-2y = 10 ⇒ y = 5/2x -5

Plot the "y=" line (a solid line for y or y, and a dashed line for y or y>).

The shade above the line for a "greater than" (y> or y), or below the line for a "less than" (y or y).

Hence, the required graph has been attached which represents the given inequality 5x-2y >10.

Learn more about the inequalities here:

brainly.com/question/20383699

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