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2 years ago

When solving for the value x in the equation 4(x-1) +6= 18, aaron wrote the following lines on the board:

Mathematics

1 answer:

iren [92.7K]2 years ago

8 0

Answer:

The Distributive Property.

Step-by-step explanation:

4(x - 1) = 12

When distributing out the 4, it must go to all the terms within the brackets like this:

4x - 4 = 12.

4x = 16

x = 4.

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soldier1979 [14.2K]

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3 years ago

6th out 10 questions

kicyunya [14]

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3 years ago

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It costs $100 to rent a bowling alley, plus $4 per person. The cost for any number (n) of people can be found using the expressi

AfilCa [17]

15*4+100

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3 years ago

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dangina [55]

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2 years ago

According to the National Center for Health Statistics, in 1990, 28% of babies in the United States were born to parents who w

svlad2 [7]

Answer:

The year is $b = 1995$

Step-by-step explanation:

From the question we are told that

The percentage of the number of babies born out of wedlock in 1990 is k = 28%

The percentage by which the number increase per year is i = 0.6%

The percentage of of the number of babies born out of wedlock considered is a = 31%

Generally the difference in between the percentage in 1990 and the percentage considered is

$d = a - k$

=> $d = 31 - 28$

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Generally the number of year require for the percentage to be equal to 31% is mathematically represented as

$n = \frac{3\%}{0.6\%}$

=> $n = 5\ years$

Generally the year which the considered percentage will be attained is

$b = 1990 + n$

=> $b = 1990 + 5$

=> $b = 1995$

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3 years ago