Jess has a tun of dinosaurs. She has 16 triceratops, 15 T-Rexes, and 7 pterodactyls. What is the probability of selecting two T-rexes without replacement?
A. 7/38
B. 29/75
C. 105/703
D. 432/641

step-by-step explanation:

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

the correct answer is x/3+10≥32

hope this !

answer: this is not a question

step-by-step explanation: this is a answer