jody has already hiked 4 kl the trail is 12 kl she can hike 2.5 per hour how many hours does she need to hike

3,2 hours

Step-by-step explanation:

Let number of hours = h

Given that she can hike 2.5 per hour. So that means distance travelled in "h" hours will be 2.5h

It is also given that Jody has already hiked 4 kilometers.

So total distance travelled by Jody in "h" hours will be (2.5h+4)

Given that trail is 12 kilometers long.

That means Jody has to travel for 12 kilometers. In that case both values will be equal and we get equation:

2.5h+4=12

We were asked only to find the equation not the value of h, so answer will be 2.5h+4=12

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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