the answer would be x=-19.25
Answer:
106 ways
Step-by-step explanation:
Please check the attached for details
Answer: 2014
Step-by-step explanation:
LED: -25x + 6y = 20
CFL: 15x + 2y = 322
we need to find which year it was the same to know where LED lighting surpassed CFL lighting
-25x + 6y = 20
15x + 2y = 322 (-3)
-25x + 6y = 20
<u>-45x - 6y = -966 </u>
-70x = -946
x = 13.51
The nearest year would be 14 which is 2014
Answer:
What is the rest of the question
Step-by-step explanation:
Answer: Total weight will be 7.055 ounces.
Step-by-step explanation:
Since we have given that
Ideal weight of a nickel = 0.176 ounce
Number of nickels in a roll = 40
Total weight becomes

Error that was allowed in total weight = 0.015 ounce
So, Total weight will be

Hence, Total weight will be 7.055 ounces.