Answer:
(-4,9)
Step-by-step explanation:
To solve the system of equations, you want to be able to cancel out one of the variables. In this case, it'd be easiest to cancel out the x variables. To do this, you'll want to multiply everything in the first equation by 2 (2(x-5y=-49)=2x-10y=-98). Then, you can add the two equations together. 2x and -2x will cancel out, so you'll be left with -11y=-99. Next, solve for x by dividing both sides of the equation by -11, which will give you y=9. This is your y-coordinate! At this point, you're halfway to the answer as you just need your x-coordinate. It's not too difficult to find the x-coordinate, since you just substitute 9 into one of the equations. It doesn't matter which one you choose as you should get the same answer with both. I usually substitute the y-value into both equations, though, just to make sure I'm correct. Once you put the y-value into the equations, you should get x=-4 after solving it. :)
Answer:
h(4) = 1/2 (4) - 8 = 2 - 8 = -6
Step-by-step explanation:
Answer:
Answer
4.0/5
58

amna04352
Genius
6.9K answers
39.6M people helped
Answer:
x-less than-or-equal-to 3
Step-by-step explanation:
4x + 6 < 18 (less than or equal to)
4x < 12 (less than or equal to) x < 3 (less than or equal to)
Answer:
C
Step-by-step explanation:
68 - 80 / 80
= - 12 / 80
= - 3 / 20
= - 15%
He originally had on his MP 3 player 99 songs
Step-by-step explanation:
The given is:
- George deleted 63 songs from his MP 3 player
- The ratio of songs he deleted to the songs he kept was 7 : 4
We need to find how many songs he originally had on his MP 3 player
Let us solve this problem by using the ratio method
∵ George deleted 63 songs from his MP 3 player
∵ The ratio of songs he deleted to the songs he kept was 7 : 4
→ Deleted : Kept : total
→ 7 : 4 : 11 (7 + 4 = 11)
→ 63 : : x
By using cross multiplication
∵ x × 7 = 63 (11)
∴ 7 x = 693
- Divide both sides by 7
∴ x = 99
∵ x represents the total number of songs
∴ He had 99 songs originally
He originally had on his MP 3 player 99 songs
Learn more:
You can learn more about the ratio in brainly.com/question/10781917
#LearnwithBrainly
