Answers:
- Sam's current age = 24
- The mother's current age = 48
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Explanation:
s = Sam's age right now
2s = the mother's age right now, since she is twice as old as Sam currently.
In 12 years time, Sam will be s+12 years old.
12 years ago from this current year, the mother was 2s-12 years old.
Since we're told these future and past ages line up, this means s+12 and 2s-12 are the same value
Set the expressions equal to one another and solve for s.
s+12 = 2s-12
s-2s = -12-12
-s = -24
s = 24
Sam is currently 24 years old.
His mother is currently 2s = 2*24 = 48 years old.
12 years ago, his mother was 2s-12 = 48-12 = 36 years old.
12 years from now, Sam will be s+12 = 24+12 = 36 years old.
Since we get 36 each time, this confirms we have the correct answers.
<h3>
Answer: Less than</h3>
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Explanation:
To convert from a percent to a decimal, move the decimal point over 2 spots to the left
25% = 25.0% converts to 0.25
Think of 0.3 as 0.30
Comparing 0.25 and 0.30, we see that 0.25 is smaller. This is because 25 is smaller than 30.
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Put another way:
0.3 = 0.30 = 30%
We can see that 25% is smaller than 30%
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Whichever method you prefer, 25% is smaller than 0.3
Answer:
12 for 7$
Step-by-step explanation:
B; 40%. 80*0.40= 32. That is why B is the answer.
It is between 3.1 and 3.17 or 3.2 if you want it by hundredths.
This is because 3.16 is 3.1600000 and many more zeros but 3.16227766 is slightly over that so it would be between 3.1 and 3.17.