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3 years ago

The product of a number and the difference of the number and 5

1 answer:

tatiyna3 years ago

6 0

X(x-5)
this is because product is multiplcation and difference is subtraction. The multiplication of a subtraction problem is distribution

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A swimming pool fills 1/10 of the pool in 1/5 of an hour. At this rate, how long does it take to fill up the pool? Show ALL your

Cloud [144]

Answer:

i got 20 hours

Step-by-step explanation:

7 0

2 years ago

WILL GIVE BRAINLIEST, THANKS, AND 5 STARS! PLEASE HELP ME!

Bogdan [553]

Answer:

-4 and 4

Step-by-step explanation:

Method 1

Apply Difference of Two Squares Formula: $a^2-b^2=(a+b)(a-b)$

Given $x^2-16=0$

Rewrite 16 as 4²

Therefore, $a^2=x^2$ and $b^2=4^2$

$\implies a = \sqrt{x^2}=x$

$\implies b=\sqrt{4^2} =4$

$\implies x^2-16^2=(x+4)(x-4)$

$\implies (x+4)(x-4)=0$

$\implies (x+4)=0 \implies x=-4$

$\implies (x-4)=0 \implies x=4$

Method 2

Given equation:

$x^2-16=0$

Add 16 to both sides:

$\implies x^2-16+16=0 + 16$

$\implies x^2=16$

Square root both sides:

$\implies \sqrt{x^2}=\sqrt{16}$

$\implies x=\pm4$

Therefore, x = -4, x = 4

6 0

2 years ago

What is the first step I’m solving for the variable? 3(3x-7)=24

spin [16.1K]

Answer:

x = 5

Step-by-step explanation:

First you distribute

9x - 21 = 24

Add 21 to both sides

9x = 45

Divide both sides by 9

x = 5

4 0

2 years ago

The maximum capacity of the school auditorium is 420 people. Write an inequality for the situation. Tell what type of numbers th

posledela

The number of people in the auditorium can be less than or equal to 420 so let p represent the number of people
The inequality is p≤420

4 0

3 years ago

Is this a direct variation? for #1

FinnZ [79.3K]

No its not because it dont go up by a constant rate of change

8 0

3 years ago