Answer:
The best first step would be to multiply the second equation by -2
Step-by-step explanation:
The best first step would be to multiply the second equation by -2
then you would have the following

and when you multiply it is easy to eliminate because you will get

and if you sum the equations you get
-7y = 8
so that is a single variable equation which is easier to solve.
Answer:
The chef can bake (a) 0.25 pies/min.
Step-by-step explanation:
1 hour = 60 minutes
1 hour = 15 pies
15=60m
15/60 = 60/60 m
0.25 = m
Answer: First option
Step-by-step explanation:
1. You must apply the following formula for calculate the volume of a square pyramid:

Where h is the height and b is a side of the base.
2. Calculate the height by applying the Pythagorean Theorem:

3. Therefore, the volume is:
