What is the value of x? enter your answer in the box. x =

9 = x

Step-by-step explanation:

We can use similar triangles and proportions to solve.  Put the side of the small triangle over the side of the large triangle

9               3x-20

=

9+72          3x-20 +56

Combine like terms

9               3x-20

=

81             3x+36

Using cross products

9*(3x+36) = 81*(3x-20)

Distribute

27x + 324 = 243x- 1620

Subtract 27x from each side

27x-27x +324 = 243x-27x -1620

324 = 216x -1620

Add 1620 to each side

324+1620 = 216x-1620+1620

1944 = 216x

Divide by 216

1944/216 = 216x/216

9 = x

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98