Answer: (3.5,-2)
Step-by-step explanation:
To solve this problem, all we have to do is plug in y=-2 into either equations from step one to find the coordinate. To make sure we have the right x-coordinate, let's plug in y for both equations.
4x-7y=28 [plug in y=-2]
4x-7(-2)=28 [multiply]
4x+14=28 [subtract both sides by 14]
4x=14 [divide both sides by 4]
x=3.5
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6x-5y=31 [plug in y=-2]
6x-5(-2)=31 [multiply]
6x+10=31 [subtract both sides by 10]
6x=21 [divide both sides by 6]
x=3.5
Now, we know the solution to the system is (3.5,-2).
Answer:
This
Step-by-step explanation:
let x = rate of the slower plane (First plane!)
x+25 = rate of the faster plane (Second plane!)
The planes fly for 2 hours, where Distance = R*T
Distance between the planes = SUM of the distances.
R*T + R*T= 470 miles
2*x + 2*(x+25)=470
2x+2x + 50 = 470
4x+50=470
4x=420
x=105 mph First plane
x+25= 105+25=130 mph Second plane.
1989 is the fifth studio album by American singer-songwriter Taylor Swift (pictured), released on October 27, 2014. Having been known as a country singer-songwriter, Swift conceived 1989 as a synth-pop record that shifted her sound and image to mainstream pop. She titled the album after her birth year as a symbolic rebirth of her image and artistry. The album's singles included three US Billboard Hot 100 number ones: "Shake It Off", "Blank Space", and "Bad Blood". Critics praised the songwriting for offering emotional engagement that they found uncommon in the mainstream pop scene. The album won the Grammy Award for Album of the Year, and featured in Rolling Stone's 2020 update of their 500 Greatest Albums of All Time. A huge commercial success, 1989 spent 11 weeks atop the US Billboard 200 and has sold over 10 million copies worldwide. (This article is part of a featured topic: 1989 (Taylor Swift album).)
Answer:
A=535.93
Step-by-step explanation:
A=P(1+r)^t
A=500[(1+0.07/4)]^4
A=535.93
Answer:
3(x-4)
Step-by-step explanation: