Kendra is planning to ride her bicycle on a popular biking path that is 84 miles long. She plans to average 7 miles per hour. To find how long the trip will take, solve the distance formula d = rt for t. Then substitute to find the time it will take her for the trip. 7 hours
13 hours
11 hours
12 hours

12 hours

Step-by-step explanation:

If we plug in the rate, 7 mph, and the total distance, 84, into the formula , you would get that 84 = 7t since the time is unknown. Next, we can divide both sides by 7 to get that t = 84/7, and 84/7 is 12, meaning that it will take Kendra 12 hours for the trip.

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions