Answer:
3/2 x-5
Step-by-step explanation:
Answer:
6/1 x 2/3
Step-by-step explanation:
Answer:
b=3
Step-by-step explanation:
If b is inversely proportional to c then

b is 5 when c is 12, means...

From where we obtain the value of k, the constant needed, which is equals to 5*12=60
Now... to find b when c=20, is just a matter of using our known variables.

Due to being a fraction, the correct answer is two-fifths
Answer:
Since we know that ABCD is an isosceles trapezoid, we can also asume that its diagonals have the same length, which means:
AC = BD
=> 7x - 21 = 5x + 13
=> 7x - 5x = 21 + 13
=> 2x = 34
=> x = 34/2 = 17
So the answer is C.