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marjae188jackson
19.02.2021 •
Mathematics
1. Socks are on sale at 10% discount. What is the sale price of a pair of socks originally marked #125.00?
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Ответ:
10/100 = x/125
1250 = 100x
1250/100 = 100x/100
12.5 = x
125 - 12.5 = 112.5
the sale price is $112.5
Ответ:
Step-by-step explanation:
How to write numbers in standard form:
Write the first number 8.
Add a decimal point after it: 8.
Now count the number of digits after 8. There are 13 digits.
So, in standard form: 81 900 000 000 000 is 8.19 × 10¹³