Answer:


Step-by-step explanation:
<u>Given the system of equations</u>


<u>Divide 3 on both sides of the 2) equation</u>



<u>Current system</u>


<u>Substitute 1) equation into the 2) equation</u>

<u>Combine like terms</u>


<u>Subtract 15 on both sides</u>


<u>Divide 4 on both sides</u>


<u>Substitute the x value into one of the equations to find the y value</u>




Hope this helps!! :)
Please let me know if you have any questions
Answer:
1/10
Step-by-step explanation:
Answer:
Step-by-step explanation:
In similar triangles, corresponding sides are in same ratio

Cross multiply,
7*(x + 8) = 6*(3x -9 )
7x + 7*8 = 6*3x - 6*9
7x + 56 = 18x - 54
56 = 18x - 7x -54
56 = 11x - 54
11x - 54 = 56
11x = 56 +54
11x = 110
x = 110 /11
x = 10
PR = 3x -9
= 30 - 9
PR = 21
743 times 2 (or doubled) = 1,482 Hope this helps:)