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:
Number 2: 126
Number 3: 128
Number 4: 75
Number 5: 204
Step-by-step explanation:
Y would equal 250 because 4*2=8 and 100*2=200 plus half of each so 8+2= 10 so now u have x and 200 plus 50 bc that’s half of 100 so now y=250
Answer:
<em>The Sahara Desert is 258 °F warmer that Antarctica.</em>
<em></em>
Step-by-step explanation:
Temperature at Antarctica = -123 °F
Temperature at the Sahara desert = 135 °F
The difference in temperature = 135 - (-123) = 135 + 123 = 258 °F
This means that the Sahara Desert is 258 °F warmer that Antarctica.
Answer:
Step-by-step explanation:
<u>The sum of -1 3/4 and 2 1/2:</u>
- - 1 3/4 + 2 1/2 =
- 2 1/2 - 1 3/4
<u>The difference between 2 1/2 and 1 3/4:</u>
<u>This is same as well as:</u>
