Answer:
$8,014.30
Step-by-step explanation:
<span>So, the formula for this problem is 10/x =40/64. You can solve for x by cross multiplication so, you end up with 40x=640 with x=16. So Justin should charge his friend $16.00.</span>
Since <A is congruent to <C , so triangle ABC is an isoceles triangle and side AB is congruent to BC.
AB = BC
Therefore, we can set up an equation as following:
10x - 7 = 2x + 33
10x - 7 - 2x = 2x + 33 -2x Subtracting 2x from each sides.
8x -7 = 33
8x - 7 + 7 = 33 + 7 Add 7 to each sides.
8x = 40
Divide each sides by 40.
So, x = 5
Answer:
{x,y} = {2,7}
Step-by-step explanation:
// Solve equation [1] for the variable y
[1] y = -4x + 15
// Plug this in for variable y in equation [2]
[2] 3x + 5•(-4x+15) = 41 [2] -17x = -34
// Solve equation [2] for the variable x
[2] 17x = 34 [2] x = 2
// By now we know this much :
x = 2 y = -4x+15
// Use the x value to solve for y
y = -4(2)+15 = 7
