She received 15% off, so she actually paid 85%
0.85(( 3*4.95) + (2* 3.25) + (2*1.75) + 5.35)) = 0.85(30.20) = 25.67
um...I have double checked this, and I am not getting an answer choice.
The answer is x = 4, y = 3, z = 2.
Solution:
We solve this given system of equations using elimination. We choose to eliminate variable z first by taking the sum of the first and second equations:
3x + 2y + z = 20 (equation 1)
x - 4y - z = -10 (equation 2)
(equation 1) + (equation 1) => 4x - 2y = 10 (equation 4)
We now select the second and third equations and eliminate the same variable z:
x - 4y - z = -10 (equation 2)
2x + y + 2z = 15 (equation 3)
(equation2 multiply by 2) + (equation 3) => 2x - 8y - 2z = -20
2x + y + 2z = 15
=> 4x - 7y = -5 (equation 5)
We solve for y by subtracting the fifth equation from the fourth:
(equation 4) + (equation 5) => 5y = 15
y = 3
We substitute y = 3 into the fourth equation to find x.
4x - 2y = 10
4x - 2(3) = 10
4x = 16
x = 4
We use y = 3 and x = 4 and substitute into the first equation to solve for z.
3x + 2y + z = 20
3(4) + 2(3) + z = 20
12 + 6 + z = 20
z = 2
Therefore, the solution is x = 4, y = 3, z = 2.
The parallelogram RSTU has a pair of parallel lines ST and RU.
The measure of the angle
<h3>How to determine the measure of TUV?</h3>
The given parameters are:
m∠SRV= 48° and m∠SVR= 54°
We have the parallel lines of the parallelogram RSTU to be ST and RU.
This means that the transversal between the lines are lines SU and RT.
The above highlights mean that:
SRV= TUV = 48°
By the triangle congruency also:-
are also similar by (AAA) property.
So the angles SRV= TUV = 48° will be equal.
Hence the parallelogram RSTU has a pair of parallel lines ST and RU.
The measure of the angle
Read more about parallelograms at:
brainly.com/question/12167853
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The answer is 213 because 360-147=213 and they are asking for BCD a 360 degree angle