Answer:
12 CDs and 15 DVDs
Step-by-step explanation:
Let
x----> the number of CDs
y---> the number of DVDs
we know that
x+y=27 -----> x=27-y ----> equation A
15x+19y=465 ----> equation B
Solve by substitution
substitute equation A in equation B and solve for y
15(27-y)+19y=465
405-15y+19y=465
4y=465-405
4y=60
y=15 DVDs
Find the value of x
x=27-y
x=27-15=12 CDs
Answer:
Dimplified: ×, or
Unsimplified:
Step-by-step explanation:
Remember, the volume of a sphere is
This comes into: ×
As we know, the shape of mars is a sphere.
Let me know if you have a question, or if it lets you not have the ×
Answer:
They should leave $12.90 or round up to $13
Step-by-step explanation:
To find out the tip amount:
Convert 20% to .20
Multiply .20 x 64.50
=12.9
No Se ollas A Ganar en solitario respondo párr