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kbuhvu
20.09.2020 •
Mathematics
Lucy is going to the grocery store. She will buy 5 items. Every item she will buy is $2. Afterward, she will buy herself a milk shake for $3. How much will she spend at the store?
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Ответ:
Explanation: she bought 5 stuff and they all cost 2 dollars. 5 x 2 = 10 plus the milkshake which is 3 dollars will equal 13 dollars.
Ответ:
1. 2.11 X10^8
2. B. 1.95 X 10^-2
Step-by-step explanation: Problem 1
is equal to 211000000 which has 8 numbers after 2. So the 10 would be to the 8th power for 2.11.
Problem 2 is equal to 0.0195.
To get it to 1.95 you’re only moving the decimal 2 places, so it’s 10 X -2.