Answer:
x= -3
Step-by-step explanation:
because i got it right before :)
I suppose the two given numbers are the length of the two legs.
Pythagorean theorem: 385.7^2 + 321.84^2=hypotenuse^2
hypotenuse=502.34
draw in the line, here are the points
By solving the equations x+2y=5, 4x-12y=-20 through elimination or substitution method we will get the value of x=1 and y=2.
Given two equations x+2y=5 and 4x-12y=-20.
We are required to solve the equations through elimination and substitution method.
Firstly we will solve the equations through elimination method.
x+2y=5-------------1
4x-12y=-20--------2
Multiply the equation 1 by 4 and then subtract the equation 2 from equation 1.
4x+8y-4x+12y=20+20
20y=40
y=2
Use the value of y in 1
x=5-2*2
x=5-4
x=1
From substitution method.
First find the value of x from first equation in terms of y.
x=5-2y-----4
Now put this value in second equation to get the value of y.
4(5-2y)-12y=-20
20-8y-12y=-20
20-20y=-20
-20y=-40
y=2
Put the value of y in equation 4.
x=5-2y
x=5-2*2
x=5-4
x=1
Hence by solving the equations x+2y=5, 4x-12y=-20 through elimination or substitution method we will get the value of x=1 and y=2.
Learn more about equations at brainly.com/question/2972832
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Answer:
5a. A = 800 +150m
5b. A = 200 +200m
6. 12 months
Step-by-step explanation:
<h3>5.</h3>
The amount repaid will be the sum of the deposit and the total of monthly payments. That total is the number of months times the payment amount.
Equation 1: A = 800 +150m
Equation 2: A = 200 +200m
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<h3>6. </h3>
The lines on a graph cross at m = 12. It will take 12 months for the amount repaid to be the same for both plans.
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Subtracting the second equation from the first gives ...
(A) -(A) = (800 +150m) -(200 +200m)
0 = 600 -50m . . . simplify
50m = 600 . . . . . add 50m
m = 600/50 = 12
Note that this answer is the quotient of the difference in deposits and the difference in payment amounts.
