3 years ago

Mathematics with applications in the management, Natural, and Social Sciences Twelfth edition

Mathematics

1 answer:

Fiesta28 [93]3 years ago

8 0

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

-45x - 6y = -966

-70x = -946

x = 13.51

The nearest year would be 14 which is 2014

You might be interested in

ASAP PLZ I'LL MARK BRAINLIEST What is 8/9 ÷ 2/3?

hram777 [196]

Answer:

4/3

Step-by-step explanation:

Your Welcome

7 0

3 years ago

What is 1 + 1 if the answer is 2 then why is it 2

maks197457 [2]

Answer:

because 1+1 adds up to 2

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

school guidelines require that there must be at least 2 chaperones for every 25 students going on a school trip how many chapero

elena-s [515]

5 chaperones are needed for the trip

3 0

3 years ago

Read 2 more answers

Solve by elimination 5x-y=12 3x+2y=2

Ber [7]

(2)5x-y=12
3x+2y=2
10x-2y=12
3x+2y=2
13x=2
x=0.15

7 0

3 years ago

Read 2 more answers

Please help I need this done quickly with the work

myrzilka [38]

Answer:

8x - 7.

Step-by-step explanation:

f(x) = 2x - 5,

g(x) = 4x -1,

substituting g(x) as x in f(x),

f(g(x)) = 2(4x - 1) - 5

= 8x - 7

4 0

3 years ago