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
The first one is b=75the second one is c= 15Hope this helps!
Answer:
m = 5/3
Step-by-step explanation:
the slope is
5
_
3
Answer:
0.84 U.S. dollars2
Step-by-step explanation:
your welcome
Answer:
Store 2
Step-by-step explanation:
Given
1. $4.50 for 5 pounds
2. $1/5 for 1/3 pounds
3. $4.00 for 5 pounds
Required
Determine the store with the lowest unit rate
To do this, we simply divide the price by the weights in each store
For Store 1:


For Store 2:


For Store 3:


<em>Comparing the unit rates of the three stores, we can conclude that store 2 offers the least unit rate</em>