In geometry, you will learn that supplementary angles add up to 180 degrees. therefore, if two angles have exterior rays that lie on a line, those two angles are supplementary and they add up to 180 degrees. supplementary angles are shown below:
you can use this information to set up an equation to solve the problem below for x.
angle 1 has measure "x". angle 2 has measure "2x + 30". find x.
hint: use the fact that these two angles lie on a line and are therefore supplementary to write the equation:
x + 2x + 30 = 180
then solve for x.
question 3 options:
10
30
50
150

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?