3 years ago

What is 3n² = 243 I NEED THIS ANSWER QUICKLY!!!!

Mathematics

1 answer:

viva [34]3 years ago

8 0

Answer:

n=9

Step-by-step explanation:

You use reverse PEMDAS.

First you would divide by 3 on both sides. This should give you:

n²=81

Then you would find $\sqrt{81}$ . Which is 9.

You might be interested in

A sporting goods store offers 40% discount on all golf clubs. Rocco spent 20% of the money in his savings account on a golf putt

MatroZZZ [7]

Answer:

Rocco doesn't have enough money to buy the golf irons

Step-by-step explanation:

step 1

Find the rest of the money left in the savings account

using proportion

$\frac{\$48}{20\%}=\frac{x}{80\%}\\ \\x=48*80/20\\ \\x=\$192$

step 2

we know that

The set of golf irons has an original price of $359

Applying 40% discount

100%-40%=60%=60/100=0.60

after the discount the price will be

$0.60(\$359)=\$215.4$

$\$215.4> \$192$

therefore

Rocco doesn't have enough money to buy the golf irons

7 0

3 years ago

What is the correct classification of the system of equations below? 14x + 2y = 10 y + 7x = -5 parallel coincident intersecting

marissa [1.9K]

In standard form the two equations are
7x +y = 5
7x +y = -5

The equations describe lines that are parallel.

5 0

3 years ago

A store purchases a bicycle from the manufacturer for $150. The store then sells the bicycle for $215. By what percentage did th

Nookie1986 [14]

Answer:

it marked the bike up by 69 percent

Step-by-step explanation:

7 0

3 years ago

Which fraction has a value that's equal to 3/4? A. 4/3 B. 12/12 C. 9/16 D. 12/16

Radda [10]

Reduce all of the mutiple choices

A. 4/3 . It is greater than 3/4. 4/3 as a decimal is 1.333. 3/4= 0.75

B. 12/12. 12/12=1. 1 is greater than 3/4

C. 9/16. Cannot reduce the fraction.

D. 12/16 divide by 4 for the numerator and denominator. 12/4=3 , 16/4= 4

Answer: D. 12/16

8 0

3 years ago

Solve for x: 3(x + 1) = −2(x − 1) − 4.

alina1380 [7]

3x + 3= -2x + 2-4
3x+2x =-2 -3
5x= -5
X= -5

7 0

3 years ago