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dymi6n
31.08.2019 •
Mathematics
It is believed that 3/4 of our dreams involve people that we know. write an expression to describe the number of dreams that feature people you know if you have d dreams. now use that expression you wrote to predict the number of dreams that include people you know out of 28 dreams.
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Ответ:
The expression is
When d = 28
Number of dreams =
21 dreams
Ответ:
12
Step-by-step explanation:
we can use PEMDAS to find the solution to the expression, PEMDAS stands for:
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
we look at the expression and we see parentheses, so we solve whats inside of the parentheses
(4 x 3) = 12
1/3 (12) + 2³
now, we solve for the exponents in the expression
2³ = 2 x 2 x 2 = 8
1/3 (12) + 8
now we multiply the terms in the expression that need to be multiplied.
1/3 x 12 = 4
4 + 8
we have no division in the expression, so we skip that step and move onto addition, which will be our last step as there is no subtraction in the expression either
4 + 8 = 12
our answer to the expression is 12