While performing a piece of music, Shivani strikes the cymbals every 8 beats and the triangle is every 4 beats. If she just struck both at the same time, how many beats will pass before she again strikes them at the same time?

actually it's 8

Step-by-step explanation:

You need to find the smallest number that is a multiple of both 8 and 4. This is the least common multiple.

List the multiples of each number. Find the smallest number that appears in both lists.

Multiples of 8:  8, 16, 24, 32, 40

Multiples of 4:  4, 8, 12, 16, 20

The least common multiple of 8 and 4 is 8. That means that Aisha will strike the cymbals and the triangle together in 8 beats, because 1 repetition of the 8-beat cymbal cycle is a total of 8 beats long and 2 repetitions of the 4-beat triangle cycle is a total of 8 beats long.

8 beats will pass before Aisha again strikes the cymbals and triangle at the same time.

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.