Danielle went running two days in a row. She ran 4 1/5 miles on Monday.
She ran a different distance on Tuesday.
She ran a total of 7 1/2 miles on both days.
Which equation and solution show the number of miles, x, that Danielle ran on Tuesday?

A
4 1/5 +x= 7 1/2
x=3 3/10 miles

B
4 1/5x=7 1/2
x=25/14 miles

C
4 1/5+ 7 1/2=x
x=11 7/10 miles

D
4 1/5×7 1/2=x
x= 31 1/2 miles

Could u make it clearer

Step-by-step explanation:

P = 18.4 units

Step-by-step explanation:

Sides AB and CD are congruent and thus have the same length.

Sides AD and BC are congruent.

The length of side AB is found using the Pythagorean Theorem:

|AB| = √ [ 5² + 1² ] = √26

and

|BC| = √ [ 4² + 1² ] = √17

Then the perimeter is P = 2(√26) + 2(√17), or

                                           10.20    +  8.25, or, to the nearest tenth,

                                      P = 18.4 units