Answer:
I'm pretty sure Its D i think-
Answer:
Step-by-step explanation:
> How tall was the tree when Vlad moved into the house?
We know that the tree grew by 26 cm per year, the current
height is 292 cm and 4.5 years have already passed, therefore the original
height was:
original height = 292 cm – (26 cm / year * 4.5 years)
original height = 175 cm
> How many years passed from the time Vlad moved in
until the tree was 357 centimeters tall?
Calculate for time using the formula:
time = (current height – original height) / 26
time = (357 cm – 175 cm) / (26 cm/ year)
<span>time = 7 years</span>
Answer:
Part 1) Is not a valid code
Part 2) The last digit should be 6 in order to make it a valid code
Step-by-step explanation:
we have
2-81273-05213-8
we know that
The last number is the check digit (8)
<em>Verify the UPC number</em>
step 1
Sum the digits in the odd positions, starting at the left
so
2+1+7+0+2+3=15
step 2
Multiply the answer in step 1 by 3
15(3)=45
step 3
Sum the numbers in the even positions, ignoring the last (12th) digit because that is the check digit that you are verifying
Do not multiply this number by 3.
8+2+3+5+1=19
step 4
Add the results from steps 2 and 3
45+19=64
step 5
Subtract the number in step 4 from the next higher multiple of 10. In this example, the next multiple of 10 after 64 is 70, so subtract 64 from 70:
70-64=6
This number is not equal to the check digit (8)
therefore
Is not a valid code
The last digit should be 6 in order to make it a valid code
