1/2x+2/5y=-10 3x+6y=-6

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?