Answer:
*step by step*
Step-by-step explanation:
If he erases one of the digits in a 4-digit number, then only 3 remain, not four.
If he erased the first digit, then it must have been 1-9, so the total is in the range 11 - 19
otherwise the digit could have been 0-9 in which case the total is in the range 10-19
Answer:
4. James' hand
5. Salvador's plane traveled the furthest and Jennifer's plane traveled the shortest.
Step-by-step explanation:
4. James' hand is bigger because 0.17>0.165. You can add as many zeros to the end of each of them as you would like. You can think of this word problem as 0.170 versus 0.165. Or, if you needed to, you could pretend like they're whole numbers, and it would be 170 versus 165. Either way, 0.170 is going to be bigger than 0.165.
5. Salvador's plane traveled the furthest. Jennifer's plane traveled the shortest distance. All three numbers have a 3.3 in them. Now, it's a matter of who has the highest number in the blank after the 3.3: 3.3_. Because Jennifer's plane had a 0 in the blank, she traveled the shortest distance. 5 is bigger than 4.5, so Salvador's plane (the 3.35 one) traveled furthest.
Answer: 
Step-by-step explanation:
We are given the following formula, used to calculate the value of an used car according to the years after the car was originally bought:
Where 
is the price of the car when it was bought new, and 
is the number of years the car was used.
Solving the formula with the given data:
This is the value of the car according to the formula.
However, this value can be approximated to:
Use a app to help for it
Hope this helps
