Mandy went rock climbing at the climbing gym for 2 1/2 hours on Thursday. On Saturday, she went to Castle Rock State Park and climbed for 1 1/2 times as long. How much time did she spend rock climbing in all?

6 1/4 hours

Step-by-step explanation:

For Mandy,

On Thursday at the climbing gym ,she spent = 2 1/2 hours rock climbing

= 5/2 hours rock climbing

On Saturday, she went to Castle Rock State Park and climbed for 1 1/2 times as long

= 3/2 times as long as she did at the climbing gym

= 3/2 × (5/2 hours)

= 15/4 hours

The time she spent rock climbing in all is calculated as:

= 5/2 hours + 15/4 hours

Find L.C.M = 4

= (2×5) + (15 × 1)/ 4

= 10 + 15/4

= 25/4 hours

= 6 1/4 hours.

Therefore, she spent 6 1/4 hours rock climbing.

she was supposed to add the hours(38.5) and multiply the amount of money she earned(7.50) resulting in $288.75 .

correct me if i'm wrong and if it is i'm truly sorry.

it is rigid.; it is isometric. ; the size is preserved.

step-by-step explanation:

a translation is called an isometry; these are transformations that preserve congruence between pre-images and images.

they are also called rigid transformations, as the only thing that can happen to a pre-image is that it is moved or turned, not stretched or shrunk.

since congruence is preserved, the size is preserved.