A plane left an airport and flew 3 miles north, 5 miles west, 2 miles north, 3 miles west, and then flew directly back to the airport . To the nearest tenth of a mile, find the total distance traveled. Thanks so much!!!
Answers
add the original 13 miles
22.4 miles
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8yd 4in -7yd 2ft 8ln
168356 rounded to the nearest ten thousand
Answers
Answer:
20 million
Step-by-step explanation:
Given : The human population doubles approximately every 50 years
To Find: If there were 2.5 million people in 1950 how many people are forecasted to populate the earth in 2100
Solution:
Equation for growth =
where a is the initial amount
y is the amount after x years
x denotes the time
A.T.Q
So, 20 million people are forecasted to populate the earth in 2100 .
Answers
x-y=14
xy=1800
We can solve by substitution method.
x=14+y
(14+y)y=1800
14y+y²=1800
y²+14y-1800=0
Now, we solve this square equation:
y=[-14⁺₋√(196+7200)] / 2=(-14⁺₋86)/2
We have two solutions:
y₁=(-14-86)/2=-50 ⇒x=14+y=14-50=-36
y₂=(-14+86)/2=36 ⇒x=14+y=14+36=50
Answer: we have two solutions:
Solution1: The first number is -36 and the other number is -50
Soltuion2: The first number is 50 and the other number is 36
Answers
Answer:
5
Step-by-step explanation:
Answers
I'm 90% sure the answer is 0,-1 I hope this helps you.
Answers
Answer:
Solution: x = 1, y = 5 or (1, 5).
Step-by-step explanation:
Given the systems of linear equations, y = 3x + 2 and y = -2x + 7:
I will demonstrate both solving for the solutions algebraically and graphically.
Algebraic Method:
Equation 1:y = 3x + 2
Equation 2: y = -2x + 7
Substitute the value of y = 3x + 2 from Equation 1 into Equation 2:
Equation 2: y = -2x + 7
⇒ 3x + 2 = -2x + 7
Add 2x to both sides:
3x + 2x + 2 = -2x + 2x + 7
5x + 2 = 7
Subtract 2 from both sides:
5x + 2 - 2 = 7 - 2
5x = 5
Divide both sides by 5 to isolate x:
x = 1
Substitute the value of x into Equation 1 to solve for y:
Equation 1: y = 3x + 2
y = 3(1) + 2
y = 3 + 2
y = 5
Therefore, the solution to the given system is x = 1, y = 5 or (1, 5).
Verify:
Substitute the value of x = 1, and y = 5 into both equations:
Equation 1:y = 3x + 2
y = 3x + 2
5 = 3(1) + 2
5 = 5 (True statement)
Equation 2: y = -2x + 7
y = -2x + 7
5 = -2(1) + 7
5 = -2 + 7
5 = 5 (True statement).
Hence, we have the correct solution to both equations.
Graphing Method:
In order to solve for the solution graphically, start by plotting the y-intercepts of both equations.
Equation 1:y = 3x + 2
Slope = 3, y-intercept: (0, 2)
Equation 2: y = -2x + 7
Slope = -2, y-intercept: (0, 7)
After plotting the y-intercepts, use the slope (rise over run technique) of each equation to plot other points into the graph. In other words:
In Equation 1, the slope = 3 (rise 3 units, run 1 unit to the right).
For Equation 2, the slope = -2 (down 2 units, run 1 unit to the right).
Continue this process until you have at least 3 points to connect your line with.
The solution will be the point where the two lines intersect, which occurs at point (1, 5).
Attached is a screenshot of the graphed equations.
Answer:
(1, 5) I think this supposed to be the answer you are looking for! I rlly hope this helps!
Step-by-step explanation:
y = 3x + 2 y = -2x + 7
= take the first equation and use the 3x + 2 and replace the y in the second equation with that!
3x + 2 = -2x + 7
= 3x + 2x = 7 - 2
= 5x = 5
= x = 1
Now substitute x for one!
y= 3 x 1 + 2
y= 5
Now try the other equation, to be sure!( If you wanna, I mean, you should...)
y= -2 x 1 + 7
y= -2 + 7
y= 5
Answers
Answer: 5.55
Step-by-step explanation:
5550/10^3
10 * 10 * 10 = 1,000
5550/1000 = 5.55
Answer:
5.55
Step-by-step explanation:
10*10=100
100*10=1000
5550/1000=