Sarah leaves Seattle for New York in her car, averaging 80mph across open country. One hour later a plane leaves Seattle for New York following the same route and flying 400mph. How long before the plane overtakes the car?

Q: Georgia, my 41-kg bulldog/pug mix dog, likes to ride in a wagon. One day, she decides to jump in the…

A: The mass of the dog is m = 41 kg. The height of the hill is h = 1.2 m. Initially, the dog is at rest…

Q: A family was taking a trip of 225 miles. On the way home, they were able to drive 5mph faster and…

A:

Q: An elf steals a sleeping dragon's gold treasure and runs off at 14 mph. 1 hour after the theft, the…

A: This question is related to speed, time and distance,  we will solve it using given information.

Q: The Quicks are driving to their vacation home. After driving for 3.25 hours, they are 250 km from…

A: Given thatQuicks After 3.25 Hour of driving    250 km away from homeAfter 4.75 hours=150 km away

Q: Sarah can bicycle a loop around the north part of Lake Washington in 2 hours and 50 minutes. If she…

A: Given : Sarah can bicycle a loop around the north part of Lake Washington in 2 hours and 50 minutes.…

Q: Treyvon is a lifeguard and spots a drowning child 30 meters along the shore and 70 meters from the…

A:

Q: A train is traveling at a rate of 150 km/hour. It enters a tunnel that is 2 km long and it takes it…

A: Given: A train is traveling at a rate of 150 km/hour. It enters a tunnel that is 2 km long and it…

Q: A river cruise ship travels at 18mph on a still lake. For cruises, it travels up and down a river…

A:

Q: Charlie's boat travels at a steady 6mph in still water but he is currently traveling up the…

A: Speed of boat in still water = 6 mph Speed of river current = 2.5 mph

Q: It took a salmon 45 seconds to swim upstream to a certain spot. The salmon then turned around to…

A: To find speed of salmon

Q: Michael took a drive down to the beach and drove at a pace of 45mph on the way there . The trip…

A: Let the return speed of Michael = x mph  we use  speed =Distance/ Time to find his return speed

Q: It takes Manu twice as long to clean the pool as it takes Ander. If it takes Ander t hr to clean the…

A: Given:Manu takes twice as long as to clean the pool as it takes by Ander.Let Ander takes t hr to do…

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.