We will use the points (2 , 208.4) and (1 , 210.2) to find the slope of the line.
m = (210.2 - 208.4) / (1 - 2)
m = -1.8
The boiling point of water decreases by 1.8 °F for every 1000-foot increase in altitude.
Well, +10 and -10 can do that job.
Hello!
The length and width are given.
We know the formula for calculating perimeter :
Let's solve!
- Perimeter = 2(123 + 17k + 24k - 49)
- Perimeter = 2(41k + 74)
∴ The perimeter is 82k + 148.
Answer:
y=6.2 and x=0.4 or (0.4,6.2)
Step-by-step explanation:
Since both expressions are equal to y, we can set them equal to each other and solve for x:
3x+5=8x+3
5=5x+3
2=5x
2/5=x
0.4=x
Now to solve y:
y=8(2/5)+3
y=16/5+3
y=3.2+3
y=6.2
Check answers:
6.2=3(0.4)+5
6.2=1.2+5
6.2=6.2
6.2=8(0.4)+3
6.2=3.2+3
6.2=6.2
Answers work, so y=6.2 and x=0.4 or (0.4,6.2) as an ordered pair
