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2 years ago

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

Mathematics

1 answer:

viva [34]2 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.

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What is the solution to the proportion? 9/x=4/12 Answers: A. 13 B. 27 C. 17 D. 3

Oksana_A [137]

9*12=108
4*x=4x
so, 4x/108
4x=108
x=27

7 0

3 years ago

Read 2 more answers

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Cloud [144]

Answer:

Step-by-step explanation:

3 0

3 years ago

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3x+4y=24 ,4x+3y=22 simultaneous equations simultaneous equ

Vinvika [58]

Answer:

x=64

y=54

Step-by-step explanation:

3x+4y=24 4(24-4y\3)+3y=22

x=24-4y/3 96-12y\3+3y=22

x=24-4(54)/3

x=-64 96/3-22=3y/3

y=54

4 0

2 years ago

Currently, the number of people entering a shopping mall is 109. It is estimated that the number of people entering the shopping

seropon [69]

Answer:

96 people.

Step-by-step explanation:

Exponential equation for a decreasing amount:

The exponential equation for a decreasing amount is given by:

$A(t) = A(0)(1-r)^t$

In which A(0) is the initial rate and r is the decay rate, as a decimal.

Currently, the number of people entering a shopping mall is 109.

This means that $A(0) = 109$

It is estimated that the number of people entering the shopping mall will decrease by 3% each hour.

This means that $r = 0.03$

$A(t) = A(0)(1-r)^t$

$A(t) = 109(1-0.03)^t$

$A(t) = 109(0.97)^t$

Find the total number of people entering the shopping mall at the end of 4 hours.

This is A(4). So

$A(4) = 109(0.97)^4 = 96.49$

Rounding to the nearest whole number, 96 people.

6 0

3 years ago

0.5(6d+10)=17 what is the value of d

mezya [45]

The value of D should be 4

4 0

3 years ago