All categories

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

-70x = -946

x = 13.51

The nearest year would be 14 which is 2014

You might be interested in

…name three points that are collinear

Elena L [17]

Answer:

D. Points D, C and A

Step-by-step explanation:

Points D, C and A are collinear as DC, CA and DA have same slope of 1/3.

5 0

3 years ago

Fill in the blank. Give O below, you can conclude that DF is congruent to _____.

lakkis [162]

Answer:

B. BC

Step-by-step explanation:

4 0

3 years ago

Sarah and gabriela are at a soccer camp . The length of a soccer practice is 2/3 hour. The coaches have set aside 8 hours for so

allochka39001 [22]

Answer:

the answer is 12

Step-by-step explanation:

you basically have to divide 8 by 2/3 then you would get 12

8/1 / 2/3
kcf
8/1 x 3/2= 24/2
24 divided by 2 = 12

3 0

4 years ago

PLS HELP

allochka39001 [22]

Answer:

Step-by-step explanation:

It's in the same order, from broker 1 down to broker 5. Straight up

5 0

3 years ago

PLEASE HELP <br><br> Find the length of BC

Law Incorporation [45]

Answer:

BC or n=72

Step-by-step explanation:

ABC≈DEF

$\frac{AB}{DE} =\frac{BC}{EF}=\frac{AC}{DF}=k$

$\frac{54}{9} =\frac{n}{12}$

$9n=54*12$

$9n=648$ (then divide both sides by 9.)

$n=72$

4 0

3 years ago