How many 4-digit numbers can be formed using the numbers 4, 5, 6 and 7? How many of the 4-digit numbers are less than 7000?
1 answer:
You might be interested in
X - the number of five dollar bills
y - the number of one dollar bills
She has 18 bills in total.
She has $62.
Set both expressions equal to each other:
She has 11 five dollar bills and 7 one dollar bills.
y - the number of one dollar bills
She has 18 bills in total.
She has $62.
Set both expressions equal to each other:
She has 11 five dollar bills and 7 one dollar bills.