. Joe chose 40 hurricanes to research for a science project. He picked an equal number of hurricanes from each of the 5 categories of hurricane strength. How many hurricanes from each category did Joe choose?
Pick the diagram that models the story. Let h represent the number of hurricanes Joe chose from each category.

8 Hurricanes from each category.

Step-by-step explanation:

Since joe chose 40 hurricanes to research, that is the total. Since he picked an equal amount of hurricanes from 5 categories, it needs to be evenly split between them. You can do this by dividing. When you evenly divide 40 by 5, you will get 8. There ya go!

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

b

step-by-step explanation: