Answer:
substitute 3 as in x:
4(3)-9
= 12-9
= 3
Hope this helped - have a nice day & be safe
Hey there!
What you do is find how much was taken off and add that to the price
60*.2= 12
12 was taken off of the original price
Now add:
60+12= 72
So the regular price was $72
Answer:
2880 in³
Step-by-step explanation:
Assume the steps have the dimensions shown in the diagram below.
We can decompose them into two rectangular prisms.
The lower prism has the dimensions 20 in × 16 in × 6 in.
The upper prism has the dimensions 20 in × 8 in × 6 in.
1. Volume of lower prism
V = lwh = 20 in × 16 in × 6 in = 1920 in³
2. Volume of upper prism
V = lwh = 20 in × 8 in × 6 in = 960 in³
3. Volume of steps
V = 1920 in³ + 960 in³ = 2880 in³
THEYRE CORRESPONDING ANGLES :)
7/8 because you subtract them both by either turning them into decimals and subtracting and the