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Helen [10]
3 years ago
12

What is the solution to this system of equations?

Mathematics
1 answer:
Murljashka [212]3 years ago
8 0

Answer:

D.

x = 3, y = -7

Step-by-step explanation:

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Mathematics with applications in the management, Natural, and Social Sciences Twelfth edition
Fiesta28 [93]

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

8 0
3 years ago
Carrie is planning her birthday party at a restaurant. She cannot spend more than $75 on the party. The cost per person for the
abruzzese [7]

Answer:

carrie can invite 5 friends with some money left over

Step-by-step explanation:

12f+10<75

12f<75-10     *carry the 10 over

12f<65           *simplify

f<65/12        *carry the 12 over

f<5.42         *simplify

4 0
3 years ago
Read 2 more answers
Line l is parallel to line m. the slope of the line l is 2/7. what is the slope of line m ?
motikmotik
The slope of line m is also 2/7 because they are parallel so they have the same slope
7 0
3 years ago
Need do find the domain and range
Morgarella [4.7K]

Answer:

So

Domain: (-∞,∞)

Range: [-\frac{105}{8} ,∞)

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
The equation is solved. describe the property used in each solution.​
pashok25 [27]

Answer:

Step-by-step explanation:

1. multiplication property of equality.

2.division property of equality.

5 0
2 years ago
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