U do 1/2 x 3/1 which then u do 1 x 3 which is 3 then 2 x 1 which is 2 so it is 3/2
Answer: " n = - 4 " .
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<u>Step-by-step explanation</u>:
<u>Given</u>:
-n + 8 = 12 ; solve for "n" ;
Subtract "8" from each side of the equation:
-n + 8 - 8 = 12 - 8 ;
to get:
-n = 4 ;
Which is the same as:
-1n = 4 ;
Divide each side of the equation by "-1" ; to isolate "n" on one side of the equation; and to solve for "n" :
-1n / -1 = 4 / -1 ;
to get:
" n = - 4 " ; which is our answer.
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Now, let's check our answer:
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→ by plugging in our value obtained for "n" ; which is " - 4 " ;
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-(-4) + 8 ≟ 12 ?? ;
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From the "left-hand sign" of the equation:
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" - (-4) = ⁺ 4 " ;
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<u>Note</u>: The opposite of negative value; or the negative of a negative value; is equal to that very positive value.
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⇒ " 4 + 8 ≟ 12 ? ;
⇒ " 12 ≟ 12 ? ; Yes!
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The correct answer is: " n = - 4 " .
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Hope this helps! Best wishes!
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Answer:
4.5
Step-by-step explanation:
This problem is set up in such a way that you take 1/10 of a number and equate it to 0.45
1/10 of x = 0.45 or
1/10 * x = 0.45 Multiply both sides by 10
1/10 * x * 10 = 0.45 * 10 Combine
x = 4.5
Answer:
It cost $0.91 10 years ago.
It takes 10.24 years for the cost of bread to double.
Step-by-step explanation:
The equation for the price of bread after t years has the following format:
In which P(0) is the current price, and r is the inflation rate, as a decimal.
If we want to find the price for example, 10 years ago, we find P(-10).
Inflation is at a rate of 7% per year. Evan's favorite bread now costs $1.79.
This means that 
. So
What did it cost 10 years ago?
It cost $0.91 10 years ago.
How long before the cost of the bread doubles?
This is t for which P(t) = 2P(0) = 2*1.79. So
It takes 10.24 years for the cost of bread to double.
