12:15 = 8:X
X=cardboard box shadow
you find x by treating this equation like a proportion.

so 15(8)÷12=x
X=10
Answer:
The points when graphed are: (3,0) and (0,-5)
Step-by-step explanation:
I know that these points are a solution to the graph because it has one x value and one y value that stays constant.
For an example, if we used an X and Y table we could see that each variable has one other variable.
This is how it look like when graphed:
Answer:
90 and 80 degrees
Step-by-step explanation:
Answer:
5 binders
Step-by-step explanation:
3 times 5 binders would be 15$, and since he paid with 20$, that is 5 dollars change
As an algbraic equation:
3x+5=20
3x=15
x=5