Answer:
x = −2 and y = 2
Step-by-step explanation:
Multiply the first equation by 2, and multiply the second equation by 1.
2(−3x + 2y = 10)
1(6x + 6y = 0)
Becomes:
−6x + 4y = 20
6x + 6y = 0
Add these equations to eliminate x:
10y = 20
Then solve 10y = 20 for y:
10y = 20
10y/10 = 20/10 (Divide both sides by 10)
y = 2
Now that we've found y let's plug it back in to solve for x.
Write down an original equation:
−3x + 2y = 10
Substitute 2 for y in −3x + 2y = 10:
−3x + (2)(2) = 10
−3x + 4 = 10(Simplify both sides of the equation)
−3x + 4 − 4 = 10 − 4(Subtract 4 to both sides)
−3x = 6
-3x/-3 = 6/-3 (Divide both sides by -3)
x = −2
Answer:
x = 23/5 OR 4.6
y = 157/15 OR 10.46
Step-by-step explanation:
x = 4x + 6x - 33 = 13
> 10x - 33 = 13
> 10x = 13 + 33
> 10x = 46
y = 4 (25/5) + 3y = -13
> 92/5 + 37 = -13
> 3y = -13 - 92/5
> 3y = - 157/5
Let, Width = x
Length = 2x - 5
So, perimeter = 110 = 2(l+w)
110 = 2(2x-5+x)
110 = 2(3x-5)
110 = 6x-10
6x = 110+10
x = 120/6
x = 20
So, 2x-5 = 2(20)-5 = 35
So, dimensions are 35 × 20
Hope this helps!
6 1/2 hours = 6.5 hours
78/6.5=12
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Its A (1st one)
"<span>The interior angles of both a regular and irregular pentagon have a sum of 540o. "
</span>Regardless of it's shape if it's a polygon with 5 sides (whether is it regular or not) the interior angles with have the sum of 540 degrees.