gailpoole4992 gailpoole4992

13-12-2018
Mathematics

contestada

Solve the system of equations using elimination.

-7x + 5y = 24
–9x + 5y = 18

A)
(9, 3)

B)
(3, 9)

C)
(
4
5
, 3)

D)
(3,
4
5
)

Respuesta :

kayleecook2003p91n17 kayleecook2003p91n17

13-12-2018

Answer: B. (3,9)

Step-by-step explanation:

7x -5y = -24(times by -1)

–9x + 5y = 18

-2x=-6

X= 3

(Substitute 3 in)

-9(3)+5y=18

-27+5y=18

5y=45

Y=9

Answer Link

Otras preguntas

Which words in this sentence make up the verb phrase? Has Jodi ever been to the lake? A. has been B. has ever C. been lake D. ever been

chris's hike started at an elevation of -12 m. His hike finished at an elevation of 235 m. How much did chris's elevation change? m

Which planet is most similar to Earth in mass and diameter? Mars Mercury Neptune Venus

If a substance is heated and then cooled off but remains as the original substance a _____ change has occurred. A) physical B) chemical C) structural D) phys

Which group in France would have been most inspired by Locke's ideas about taxation?

Which sentence uses a verb that agrees with its subject? A. Is the potato chips stale? B. Has the scuba divers from the boat surfaced yet? C. Were they picking

When examining the phases of matter, as the _____ of a substance increases, the _____ generally decreases. A) organization, density B) density, temperature C)

Which of these rules was part of the caste system? (4 points) A person could change his or her status through achievement, such as gaining wealth. A person was

Which sentence does not contain any errors? A. The officers car is parked in the driveway. B. The officers's car is parked in the driveway. C. The officers' car

What literary period is the Beat Generation aligned with?