Answer:
2(x+y) - 23 or
2x + 2y - 23
Step-by-step explanation:
twice the sum of x and y means
2(x+y)
decreased means minus or -
decreased by 23 means
- 23
twice the sum of x and y decreased by 23
2(x+y) - 23
2(x+y) = 2x + 2y
2x + 2y - 23
Answer:
1. 
2. 
Step-by-step explanation:
1. 
Do cross multiplication

Distribute 3 through the parentheses

Move 3x to left hand side and change it's sign

Collect like terms

Divide both sides by 3

Calculate

The value of x is 1
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2. 
Do cross multiplication

Distribute 2 through the parentheses
Similarly, distribute 6 through the parentheses

Move 12n to left hand side and change it's sign
Similarly, move 48 to right hand side and change it's sign

Collect like terms

Add the numbers : 48 and 2

Divide both sides by -10

Calculate

The value of n is -5 .
Hope I helped!
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Answer:
55 degrees
Step-by-step explanation:
a line is 180 degrees. also, all angles in any triangle add up to 180 degrees. so, find the missing angle in the triangle by 180-30-25=125 degrees. Then to find angle 4, 180-125=55 degrees.
The exponential function that represents the table is 
<h3>What is an exponential function?</h3>
An exponential function is any function that has its constant raised to the power of an argument.
An exponential function is represented as:

Where:
- a represents the initial value
- b represents the rate
From the table we have the following ordered pair
(x,y) = {(0,2) (1,8)}
So, we have:



Also, we have:



Divide both sides by 2

So, we have:


Hence, the exponential function is:

Read more about exponential functions at:
brainly.com/question/11464095
Answer:
YES
Step-by-step explanation:
1 million minutes = 1.9 years
An average man can live upto 78 years.
So, an average man can easily live upto 1,000,000.