28:37 3 Tram left a tip of $9, which was 20 of the total cost of the food. Which shows the correct equation and value of x, the total cost of the food? X = 9; x = $1.35 3 X= 9x = $60 3 20 = 9:x= $1.35 3 20 9; X = $60 Submit Next Save and Exit Mark this and return

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.

The half-life of a certain material is 0.004 second. approximately how much of a 20-gram sample will be left after 0.016 second? a. 5 grams b. 16 grams c. 0.32 gram d. 1.25 grams