This problem was solved incorrectly. circle the mistake in the work/answer, explain what the mistake is, and find the correct answer. use 3.14 for pi and round to the nearest hundredth if necessary

The mistake was that when substituting in the value for d, the student used the value for the radius instead.

For this to be correct, they should double the value of the radius (so do 5.1 × 2) to give them 10.2, and then work out the question:

C = π × d

C = 3.14 × 10.2

C = 32.028 ≈ 32.03 m (rounded to the nearest hundredth)

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