Every 56 seconds, the radioactive substance is divided in half.
224 / 56 = 4
We need to cut the substance in half 4 times.
896 / 2 = 448
448 / 2 = 224
224 / 2 = 112
112 / 2 = 56
After 224 seconds, there will be 56 grams of the radioactive substance left over
Answer:
C
Step-by-step explanation:
First check if the triangle is right.
If the square of the longest side is equal to the sum of the squares on the other 2 sides then the triangle is right.
longest side = 
and ( )² = 12
2² + (
)² = 4 + 8 = 12
Thus the triangle is right → C
It would be squared. :)
hope this helps :)
Answer:
(a) 75 minutes
(b) 50 minutes
(c) labeling speed = Number of books to label ÷ Time taken to finish labeling them
Step-by-step explanation:
Firstly, she has 750 books to label and she labels 10 books in a minute. Hence, the number of minutes it will take her will equal the number of books divided by the number of books labeled in a minute.
This will be 750/10 = 75 minutes
Secondly, we use the same approach here but the number of books she labeled in a minute is different. Hence we get 750/15 = 50 minutes.
Lastly, the relationship between her labeling speed and the number of minutes is shown as follows.
The speed has a unit of books/minute since it is a rate and this is equal to number of books labeled ÷ Time taken to label them
