Answer: the number of the cookies in the original batch is 120
Step-by-step explanation:
Let x represent the number of cookies that were in the original batch.
She gave one-quarter of the batch to Kevin. This means that the number of cookies given to Kevin is 1/4×x = x/4
She gave one-fifth to Katie. This means that the number of cookies given to Katie is 1/5×x = x/5
She gave one-sixth to Mike.
This means that the number of cookies given to Mike is 1/6×x = x/6
If those three were given a total of 74 cookies, it means that the sum of the cookies given to Kevin, Katie and Mike 74. It is expressed as
x/4 + x/5 + x/6 = 74
Taking 60 as LCM and multiplying through with it, it becomes
15x + 12x + 10x = 4440
37x = 4440
x = 4440/37
x = 120
It appears to be a right triangle.
Answer:
32.5 miles in 30 minutes.
Step-by-step explanation:
There are a total of 4 - 30 minute segments in a period of two hours. Therefore, in this question, we can simply divide the total distance that Mr Edwards travelled during those two hours by the 4 segments, and that would give us the distance travelled in a single segment of 30-minutes.
130 / 4 = 32.5 miles
Finally, we can see that Mr Edwards travelled 32.5 miles in 30 minutes.
Answer:
30
Step-by-step explanation: