7 divided by 1 is 7 so you would do long division
Answer:
The area of the shape is 18cm^2
Step-by-step explanation:
For a set of trials

. In this case our desired out come is all multiples of 3: 3,6,9 and 12. The total number of outcomes can be found as 100 by adding up all the frequencies. Thus our experimental probability is

.
Answer:
h < 8'11"
Step-by-step explanation:
The tallest person is 8'11". All other people are shorter, not larger, and not the same height.
Try, please, this:
1) Imagine, that pharmacist used 'x' gr. of 40% solution and 'y' of 70% solution.
Together (20 gr. of 52% sol.) it will be x+y=20.
2) From other side, the pharmacist combined 40x and 70y gramms, after obtaining together it is 52(x+y) gramms. In other words 40x+70y=52(x+y)
3)

Answer: 8 gr. of 70% solution and 12 gr. of 40%.