Each week, rosario drives to an ice-skating rink that is 60 miles away. the round-trip takes 2.75 hours. if he averages 55 miles per hour on his way to the rink, which equation can be used to find x, the number of miles per hour he averages on his way home?

60(55)•60x=2.75

Step-by-step explanation:

Step-by-step explanation:

We know that,

On his way to the rink,

Distance = 60 miles,

Speed = 55 miles per hours,

Thus, the time taken by him = hours,

While, on his way to the home,

Distance = 60 miles,

Let x be the number of miles per hour he averages on his way home,

So, time taken by him = hours

Thus, the total time taken by him =

According to the question,

Total time taken by him = 2.75 hours,

Which is the required equation.

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204