Poor family could afford a horse and a scooter but not a cellphone. Kidding aside, The girl had a two-hour head start, and was riding her horse at 10 mph. Her father was riding his scooter at 15 mph. As they will meet up, their distances would be the same. Looking at the formula for distance: distance = speed*time, we can equate the distance for the two people as they would be the same. This is shown below:
Let: x = number of hours
distance of girl = distance of dad
10(x + 2) = 15x
x = 4
Therefore, they will meet after 4 hours after 12:00pm, or at 4:00 pm.
Answer:
Step-by-step explanation:
x² + 4x -21 = x² + 7x - 3x -3*7
= x*(x + 7) -3(x + 7)
=(x + 7)*(x-3)
A triangle and a rectangle are combined to create the figure.
Answer:
This equation is invalid, the left and right sides are not equal, therefore there is no so
Step-by-step explanation:
Simplifying
5 + 2y = 13 + 2y
Add '-2y' to each side of the equation.
5 + 2y + -2y = 13 + 2y + -2y
Combine like terms: 2y + -2y = 0
5 + 0 = 13 + 2y + -2y
5 = 13 + 2y + -2y
Combine like terms: 2y + -2y = 0
5 = 13 + 0
5 = 13
Solving
5 = 13
Couldn't find a variable to solve for.
This equation is invalid, the left and right sides are not equal, therefore there is no so
Answer:
= 5
Step-by-step explanation: