The inequality below shows the relationship between Mario’s biking goal in miles and how many miles he rides in an hour. Let t represent the amount of time in hours.
8 ≥ 20

7

step-by-step explanation:

the answer would be 7

your answer would be 12

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus