X= weight of TV
y= weight of CD
3x+5y= 62.5
3x+ 2y= 52
You can either solve for a variable, or eliminate a variable by subtracting the second equation from the first:
3x + 5y = 62.5
-(3x+2y = 52)
0 + 3y = 10.5, so y = 10.5/3 or 3.5.
Now plug y= 3.5 back into any equation to get x:
3x + 5(3.5) = 62.5
3x + 17.5 = 62.5
3x = 45
x = 15
Always check work. Both equations should be true for x=15, y= 3.5
Any number to the power of 0 equals 1. Even if the original number is extremely high like 10000000, the value will still equal 1.
Answer:
27 days
Step-by-step explanation:
It is a simple division question
18 / (2/3)
Multiply by reciprocal
18 * 3 / 2 = 27
Answer:
Its 0.33
Step-by-step explanation:
Took the test
