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BabaBlast [244]
3 years ago
9

Solve -5(3n + 4) = 40. -4 -3 3 4

Mathematics
2 answers:
Nuetrik [128]3 years ago
8 0
Our current equation is:
-5(3n + 4) = 40

To solve for this, we need to use the Distributive Property. The Distributive Property allows any number/variable outside of the parenthesis to be multiplied by all numbers/variables inside of the parenthesis.

For example, 3(2 + 3) would be:
3(2) + 3(3)
6 + 9
15.

Now that we've defined our terms and provided an example, I think we're ready to solve.

-5(3n + 4) = 40
-5(3n) + -5(4) (multiplying a positive by a negative makes a negative)
-15n -20 = 40
Add 20 to both sides to get -15n by itself.
-20 + 20 = 0
40 + 20 = 60

We now have:
-15n = 60

Divide both sides by -15 to solve for n.
-15n / -15 = n
60 / -15 = -4

N = -4.

Your answer is A.) -4.

I hope this helps!
UkoKoshka [18]3 years ago
7 0
-5(3n + 4) = 40

Simplify.

-15n - 20 = 40

Add 20 to both sides.

-15n = 40 + 20

Simplify.

-15n = 60

Divide both sides by -15.

n = 60 / -15

Simplify.

n = -4

Check our work by simply plugging -4 in for n in the given equation.

-5(3n + 4) = 40

-5(3(-4) + 4) = 40

Simplify.

-5(-12 + 4) = 40

Simplify.

-5(-8) = 40

40 = 40

So, n = -4

~Hope I helped!~
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\frac{12}{44} simplified is \frac{3}{11}

I got this by dividing both the numerator and denominator by 4

Hope this helps

-AaronWiseIsBae

7 0
3 years ago
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15,000,015,969+5,000,003
Nat2105 [25]
<h2>Answer:</h2><h2>15,005,015,972</h2><h2></h2><h2>Hope this helps!!</h2>
7 0
2 years ago
What is the sum when 1/5 is added to 5/2?
NeTakaya

Answer:

27/10

Step-by-step explanation:

6 0
3 years ago
PLEASE HELP!!! WILL MARK AS BRAINLISTS!!!
Serjik [45]

The limit is x---->4-

The negative show that x approaches from the left

Now

As x approaches 4 from the left ... Means This number should be less than 4 (<4) but really close to 4.

Let's pick a Number

Say 3.99

Substitute this... You have

3.99/3.99-4

3.99/-0.01

If we choose x to be 3.999

we will have

3.999/-0.001

Notice the pattern... As x approaches 4 from the left... This limit will approach NEGATIVE INFINITY

Why?

As you approach 4 from the left... 3.9,3.99,3.999... You notice that the denominator becomes negative and EXTREMELY SMALL... and when you divide by an extremely small Number..... You'll get a relatively HUGE VALUE(You can try this... Use a calc... Divide any number of choice by a very small number... say.. 0.0000001.... You'll get a huge result

In our case... The denominator is negative... So it Will Approach a very Huge Negative Number

Hence

Answer.. X WILL APPROACH NEGATIVE INFINITY.

Vertical asymptotes are the zeroes of the denominator of a function

The denom. is x-4

Equate to zero to get the asymptote

x-4=0

x=4

Hence... There will be a vertical asymptote at x=4.

Have a great day!

7 0
3 years ago
Solve the quadratic equation by factoring. 9x^2+24x+20=4
const2013 [10]

D. -4/3

Let's solve your equation step-by-step.

9x2+24x+20=4

Step 1: Subtract 4 from both sides.

9x2+24x+20−4=4−4

9x2+24x+16=0

Step 2: Factor left side of equation.

(3x+4)(3x+4)=0

Step 3: Set factors equal to 0.

3x+4=0 or 3x+4=0

x= −4 /3

Hope This helps

5 0
3 years ago
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