Answer:
$100
Step-by-step explanation
You just add 77 and 23 which is 100. Therefore she gave the cashier 100 dollars.
If that is all the question is asking, simply solve the problem.
Divide 8 cars by 4 hours, giving you 2 cars every hour.
Answer:
322.788?
Step-by-step explanation:
Add the time to get to the grocery store and then to the post office:
14 + 22 = 36 minutes
subtract that time from the total time it takes her:
55 - 36 = 19
she has 19 more minutes to get to school
the common denominator is the number on the bottom of the fraction. in this case it would be 4 (in 3/4) and 3 (in 2/3), you have to find a number which equals the same for both! so 3 and 4 both go into 12. 3 × 4 and 4 × 3, so you common denominator is 12! but, you also have to multiple the same number up on the top number. so 3 × 3 and 2 × 4. Then you Add! but only the top numbers! you can only add/subtract fractions that have the same common denominator! your answer will end up being the improper fraction of 17/12. if you have to turn it into a decimal or make it proper, then do so ^^
to find a common denominator, you have to find the number which both numbers equally go into! so no decimals. check the times tables!