What percent of 45 is 135? explain your reasoning

The answer is: " 300 " .

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→ " 300 % " of 45 is " 135 " .

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Explanation:

To solve:

* = 135 .

→ The "100" cancels out to a "20" ; and the "45" cancels out to a "9" ;

→ {since: "100 ÷ 5 = 20" ; and since: "45 ÷ 5 = 9" } ;

→ So; we rewrite as:

* = 135 ;

→ Note: " " = 90 ;

→ So; we rewrite as:

* 9 = 135 ;

→ Now. divide each side of the equation by "9" ; to further simplify the problem; as follows:

{ ( * 9 ) / 9 ) } = {135 / 9 } ;

to get:

= 15 ;

Now, multiply EACH SIDE of the equation by "20" ;

→ to isolate "x" on one side of the equation; & to solve for "x" ;

→ 20 * {} = 15 * 20 ;

to get:

→ x = 300 .

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The answer is: " 300 " .

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→ " 300 % " of 45 is " 135 " .

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b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )