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3 years ago

What is the solution to the equation

Mathematics

2 answers:

Elis [28]3 years ago

8 0

Answer:

x = -13

Step-by-step explanation:

Distribute:

8 - 6x + 10x - 15 = 20 - 5x

Combine like terms:

4x - 7 = 20 - 5x

Isolate Variable

-x = 13

-1(-x) = -1(13)

x = -13

Montano1993 [528]3 years ago

8 0

Answer: $x=3$

Step-by-step explanation:

You need to apply Distributive property on the left side of the equation:

$2(4-3x)+5(2x-3)=20-5x\\\\8-6x+10x-15=20-5x$

Now you must add the like terms on the left side of the equation:

$-7+4x=20-5x$

Add $5x$ to both sides:

$-7+4x+5x=20-5x+5x\\\\-7+9x=20$

Add 7 to boht sides of the equation:

$-7+9x+7=20+7\\\\9x=27$

And finally, divide both sides by 9:

$\frac{9x}{9}=\frac{27}{9}\\\\x=3$

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the area of a window is 40 square feet. the length is the square root of 20 feet. what is the width of the window

Irina18 [472]

----------------------------------------------------
Given information
----------------------------------------------------
Area = 40ft²
Length = √20 ft

----------------------------------------------------
Formula
----------------------------------------------------
Area = Length x Width

----------------------------------------------------
Find Width
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40 = √20 x width
Width = 40 ÷ √20
Width = 40 ÷ 2√5
Width = 20 ÷ √5
$Width = \frac{20}{ \sqrt{5} }$

$Answer: \boxed {Width = \frac{20}{ \sqrt{5} }}$

3 0

4 years ago

What is the solution to the equation? 7x + 6 = -22

trapecia [35]

C.) x = -4 is the correct answer

Step-by-step explanation:

In order to solve the equation we have to isolate x on one side of equation

Given

7x + 6 = -22

Subtracting 6 from both sides

$7x+6-6=-22-6\\7x=-28$

Dividing both sides by 7

$\frac{7x}{7}=\frac{-28}{7}\\x=-4$

Hence,

C.) x = -4 is the correct answer

Keywords: Linear equation

Learn more about linear equation at:

#LearnwithBrainly

7 0

3 years ago

Mr .moris wrote a double fact.it has a sum greater than 6.the numbers that he added are each less than 6.what fact might he have

marta [7]

How could have written 5 and 4. But there are more answers.

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3 years ago

An isosceles trapezoid is a quadrilateral with two congruent legs and a pair of parallel bases. Prove the base angles of an isos

Firdavs [7]

Check the picture below.

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now, the bases are parallel, that means the altitude segment is perpendicular to the base, the longest side at the bottom, so, we end up with a right-triangle that has a Hypotenuse and a Leg, equal to the other triangle's.

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4 years ago

REY [17]

Answer:

TFY

Step-by-step explanation:

let's start with the 90 degrees angle.

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so, C and T must be aligned.

and the we go around.

F ~ H

and then

Y ~ S

6 0

3 years ago