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Veronika [31]
3 years ago
7

Use the properties of exponents to rewrite the expression. (3•6) ^2

Mathematics
1 answer:
blagie [28]3 years ago
5 0

Answer:

the answer is 108

Step-by-step explanation:

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Alja [10]

A. The pair of linear equations are: x + y = 55 and y = x + 25

B. Number of time she spend running everyday is: 15 minutes.

C. It is not possible.

<h3>How to Write a System of Linear Equations?</h3>

A system of equations consist of linear equations that have unknown variables whose values make the linear equations in the system true.

<u>Part A:</u> To write a pair of linear equations, do the following,

Let x represent the time Jackie runs

Let y represent the time Jackie dances

We are given that, Jackie runs and dances for a total of 55 minutes every day, therefore, the first linear equation would be:

x + y = 55 --> equation 1

We are also given that Jackie dances for 25 minutes longer than she runs, therefore, the second linear equation would be:

y = x + 25 --> equation 2

Therefore, the two pair of linear equations that shows the relationship between the number of minutes Jackie runs and dances everyday are:

x + y = 55

y = x + 25

Part B: Substitute y = (x + 25) into equation 1

x + y = 55 --> equation 1

x + x + 25 = 55

2x + 25 = 55

2x = 55 - 25

2x = 30

x = 15

Therefore, the number of time she spend running everyday is: 15 minutes.

Part C:

If she spent 45 minutes dancing (y = 45), and x = 15, substitute the values into x + y = 55 to find out if it is possible.

15 + 45 = 55

60 = 55 (not true)

Therefore, it is not possible.

Learn more about the system of equations on:

brainly.com/question/13729904

#SPJ1

8 0
2 years ago
The population of one type of fish, P.,, and another type of fish, P2, are modeled by the equations P1 = 10.000) and P2 = 1000(3
Firlakuza [10]
I think it’s B.P2= 1/1
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3 years ago
What is 60 + 50.45x = 57.95x and how do I know which part of the equation to solve at which time?
Aleksandr-060686 [28]

Answer:

x=8

Step-by-step explanation:

First, subtract 50.45x from both sides. Then divide by 7.5 on both sides.

60+50.45x=57.95x\\60=7.5x\\x=8

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3 years ago
Help pleasee due todayyy ! :(
Shtirlitz [24]

Answer:

1. $434

2. 36 ways

Step-by-step explanation:

1. 350×6÷100=21

21×4=84

84+350=434

3 0
3 years ago
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