Carmela is growing her hair to donate to a charity. The hair must be a minimum length of 10 inches. Her hair is already 4 inches
long. If hair grows at the rate of 6 inches a year, write and solve an inequality to find the minimum number of years she must grow her hair to be able to make a donation.
1 answer:
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Given:
The expression is:
To find:
Part A: The expression using parentheses so that the expression equals 23.
Part B: The expression using parentheses so that the expression equals 3.
Solution:
Part A:
In option A,
[Using BODMAS]
In option B,
[Using BODMAS]
In option C,
In option D,
[Using BODMAS]
After the calculation, we have and
.
Therefore, the correct options are B and D.
Part B: From part A, it is clear that
Therefore, the correct option is C.