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Serjik [45]
3 years ago
14

Solve the system by elimination method. x+y-6=0

Mathematics
2 answers:
mixer [17]3 years ago
4 0
X + y - 6 = 0
Take out y.
x - 6 = 0
Add 6 to both sides.
x = 6 is your first equation.

x - y - 8 = 0
Take out y.
x - 8 = 0
Add 8 to both sides.
x = 8 is your second equation.

I hope this helps!
Cerrena [4.2K]3 years ago
3 0

Answer:

The answer is x=7

and y=-1

On eliminating y the resulting equation is 2x=14

Step-by-step explanation:

Given x+y-6=0 ...........[1]

and x-y-8=0 ...............[2]

On eliminating y in eq [1]

y=6-x

Putting value of y in eq [2]

x-(6-x)-8=0

x-6+x-8=0

2x-14=0

2x=14

x=7

Putting x=7 in [1]

7+y-6=0

y+1=0

y=-1

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pashok25 [27]

Answer:

5

Step-by-step explanation:

This is a special right triangle: 5, 12, 13

Or you can solve using the Pythagorean Theorem (a^2+b^2=c^)

--> 13^2-12^2=b^2

-->169-144=b^2

-->25=b^2

b=5

6 0
3 years ago
Read 2 more answers
1) A right triangle has a side that measures 4 m and a hypotenuse that measures8.5 m. What is the measure of the other side of t
hammer [34]
1) Use the pathagreom theorem; a^2+b^2=c^2
(The hypotenuse is always c. The other two legs can be either a or b.)
*use x for the unknown side*
1. Plug in the measurements
4^2+x^2=8.5^2
2. Solve
16+x^2=72.25
RADICAL(56.25)=> 7.5
The measure of the other side of the triangle (x) is= 7.5 m

2) Draw a square with the measure of 20 cm on each side.
Draw a diagonal line across the square.
(Use the pathagroeam theorem)
We know that the legs are 20, and 20. The hypotenuse is what we are trying to find (x).
1. Plug in the measurements
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3 0
3 years ago
yesterday, Jack drove 40 1/2 miles. he used 1 1/4 gallons of gasoline. What is the unit rate for miles per gallons
Amanda [17]


From the information we have, Jack drove 401/2 miles and used a total of 1 1/4 gallons of gasoline.

We need to find out how many miles he travelled  per each gallon.

40 1/2 miles can be written as 40.5 miles

1 1/4 gallons  can be written as 1.25 gallons.

So now we form an equation.

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We cross multiply the equation

40.5 * 1 = 1.25 * x


40.5 = 1.25x

40.5 / 1.25  = x

 32.4 = x

x = 32 .4

So the unit rate for miles per gallons is 32.4 miles per gallon


3 0
3 years ago
Using properties find the sum or product of 93+(68+7)
Lemur [1.5K]
<span>Pemdas tells us to do parenthesis first so 68 + 7 = 75 then 75 + 93 which equals 168</span>
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Step-by-step explanation:

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