Elia rode her bicycle from her house to the beach at a constant speed of 18 kilometers per hour, and then rode
from the beach to the park at a constant speed of 15 kilometers per hour. The total duration of the rides was 1
hour and the distances she rode in each direction are equal.
Let b be the number of hours it took Elia to ride from her house to the beach, and p the number of hours it took
her to ride from the beach to the park.
Which system of equations represents this situation?
Choose 1

the system is

p+d=1

18*b=15*p

Step-by-step explanation:

d=18*b

d=15*p

the system is

p+d=1

18*b=15*p

f

step-by-step explanation:

f

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