Answer:
100 possible extensions
Step-by-step explanation:
we can calculated how many possible extensions they have to try using the rule of multiplication as:
___1_____*___10_____*___10_____*____1____ = 100
1st digit 2nd digit 3rd digit 4th digit
You know that the 1st and 4th digits of the extension are 5. it means that you just have 1 option for these places. On the other hand, you don't remember nothing about the 2nd and 3rd digit, it means that there are 10 possibles digits (from 0 to 9) for each digit.
So, There are 100 possibles extensions in which the 5 is the first and last digit.
3 divided by 5 is 0.6 so that’s the first one and 0.6•12=7.2 and 0.6•28=16.8
I hope this helps and your welcome☺️
OMG THANKSSSSSSSSSSSSSSSSSSSSSs
Answer:
it's 8
Step-by-step explanation:
Answer:
7. -37/36 or -1 1/36
8. -3/10
9. 1/24
10. -118/21 or -5 13/21
11. 97/12 or 8 1/12
12. 49/8 or 6 1/8
Step-by-step explanation:
To subtract fractions, they must have the same denominator. The common denominator will be the LCM (lowest common multiple) of the two denominators. Then, combine the fractions and simplify.
7. Find a common denominator
Combine the fractions
Answer. Already in lowest terms.
Keep a negative number. 37 goes into 36 one time, leaving 1 remainder (becomes numerator)
8. Find a common denominator
Combine the fractions
Answer in simplest form.
9. Find common denominator
Combine the fractions
Answer in simplest form
10. Translate to improper fraction
Multiplied each whole number with base, added to numerator
Found common denominator
Combined fractions
Answer in improper form
Answer as a mixed number
11. Convert to improper fraction
Two minuses make a plus
Find common denominator
Combined fractions
Answer as improper fraction
Answer as mixed fraction
12. Convert to improper fraction
Find common denominator
Combined fractions
Answer as improper fraction
Answer as mixed number