Answer:
Yes.
Step-by-step explanation:
Let's first convert his speed to km/h.
>
. Therefore, Rob is traveling within the speed limit.
Answer:a2+b2=c2
32+42=52
9+16=25
25=25
Step-by-step explanation:
If
, then

So

Then for
, we can cancel common terms:

Answer:
Step-by-step explanation:
You start with creating let statements.
Let x = the cost of each pencil.
Let y = the cost of each eraser.
Let z= the cost of each pen.
Then, you’d fill in information from the problem.
3x + 4y = 65
2z + y = 35
Now, you’d solve like a system of equations; meaning you can do elimination or substitution.