Answer:
The question should say..... How much of the sample is left in......FIVE.....weeks? At least that is what I think you want to know.
The answer is 318.13 grams.
Step-by-step explanation:
450 - 6.7% = 419.85 grams ---- End of week 1
419.85 - 6.7% = 391.72 grams ---- End of week 2
391.72 - 6.7% = 365.47 grams ---- End of week 3
365.47 - 6.7% = 340.98 grams ---- End of week 4
340.98 - 6.7% = 318.13 grams ------ End of week 5
Error=estimate-actual
error=42-30=12
if want percent error
percent error=error/original times 100=12/30 times 100=40% error
the error is 12
So for the first problem it would be the first solution you see there, and for the second problem it would be the last answer.
My advice would to use this site that I found called math papa, it helps a lot in algebra. :)
Answer:
- <u>Each digit has a value ten times the value of the digit to its right.</u>
Explanation:
The given number is 9,999,999.
Each digit has a value according to its place.
The right most 9 is in the place of the ones and its value is 9 × 10⁰ = 9 × 1 = 9.
The second 9 from the right is in the place of the tens and its value is 9 × 10 = 90.
The third 9 from the right end is in the place of the hundreds and its value is 9 × 100 = 900.
The next 9 is in the place of the thousands, so its value is 9,000.
So, each 9 has a value ten times the 9 to its right.
