5*8=40
Answer: the total change in time was 40 seconds
Hope this helps:)
Answer:
7
Step-by-step explanation:
First, add all the cards.

If we remove one card, the remaining four cards average will be 6, this means that the 4 remaning cards will average total will be at 24 because 6×4=24. So we need to find a value that will equal 24 if we remove that card.
The answer is 7 because

Its a plane, theyre not on the same line and have a flat surface.
When 5 adults joined the group of y: y+5
The ratio of the number of adults to children became 3:5, so the number of children to total diner should be 5:8. (8=3+5)
So the number of children would be (5/8)*(y+5) = (5y+25)/8
Answer:

Step-by-step explanation:
Use the Pythagorean Theorem

and
are either opposite or adjacent
is the hypotenuse.
1. Look for the right angle. (the little box). The right angle "points" to the hypotenuse. In this case, the hypotenuse is 25.
2. Because we know the hypotenuse is 25. We know that 24 is our adjacent. Meaning our missing side is the opposite.
3. Plug in the numbers. 
4. Solve:






Hope this helps! Lmk if you have questions.